DOCSLIB.ORG

El Mokni & Al. Cactaceae New to Tunisian Flora, Bradleya 2020

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Bradleya 38/2020 pages 35–50 New records of cacti (Opuntioideae & Cactoideae, Cactaceae) from Tunisia Ridha El Mokni 1,2,3 , Filip Verloove 4, Alessandro Guiggi 5 & Mohamed Hédi El Aouni 1 1. University of Carthage, Laboratory of Botany and Plant Ecology (SNA-214), Department of Life Sciences, Faculty of Sciences of Bizerta, Jarzouna, 7021, Bizerte, Tunisia. (email: riridah@hot - mail.com) 2. University of Jendouba, Laboratory of Silvo-Pastoral Resources, Silvo-Pastoral Institute of Tabarka, BP. 345, 8110-Tabarka, Tunisia. 3. University of Monastir, Laboratory of Botany, Cryptogamy and Plant Biology, Department of Pharmaceutical Sciences “A”, Faculty of Pharmacy of Monastir, Avenue Avicenna, 5000-Monastir, Tunisia. 4. Botanic Garden of Meise, Nieuwelaan 38, B-1860 Meise, Belgium. (email: [email protected]) 5. DISTAV, Polo Botanico, Università degli Studi di Genova, International Cactaceae Research Cen - ter (ICRC), Corso Dogali, 1M - 16136 Genova, Italy. (email: [email protected]) Photographs: Ridha El Mokni. Summary : Botanical surveys undertaken in Cen - Beschreibungen gegeben, Kommentare zu ihrem tral and Northern Tunisia (North Africa), mostly aktueller Status werden angegeben und Fotos wer - between 2012 and 2018, have revealed first records den bereitgestellt. and/or new distributional records for non-native succulents (sensu lato) belonging to the Cactaceae Introduction family. Some can be considered naturalised or even Succulents are found across the globe in nearly potentially invasive [e.g. Opuntia dillenii (Ker all types of habitat, but most often in arid or semi- Gawl.) Haw.], whereas others are here reported for arid parts of the world. They are specially adapted the first time for North Africa, either as recently to deal with dry, desert-like conditions, and able to naturalised or casual, e.g.: Echinopsis eyriesii store water in one or more of their organs; their (Turpin) Zuccarini, Opuntia dejecta Salm-Dyck, O. leaves, stems, or roots are often filled with water- lindheimeri Engelm., O. monacantha Haw and O. storing tissue and are thus unusually fleshy and robusta J.C. Wendl. ex Pfeiff. Short descriptions are enlarged. The Cactaceae family is distinguished given for each of these species, comments on their from the other succulent plant families (i.e. actual status were pointed out and field photo - Agavaceae, Aloaceae, Euphorbiaceae, etc.) by the graphs are provided. presence of small rounded woolly areas normally localized along the ribs of the plant (known as are - Zusammenfassung : Botanische Untersuchungen in oles) from which new segments, flowers and spines Zentral- und Nordtunesien (Nordafrika), haupt - are developing (retrieved from https://www.iucn.org sächlich zwischen 2012 und 2018, haben erste /ssc-groups/plants-fungi/cactus-and-succulent- Aufzeichnungen und/oder neue Beobachtungen für plants-specialist-group/what-are-cacti-and-succu - nicht-einheimische Sukkulenten (sensu lato) aus lents). Cactus roots are generally less specialized in der Cactaceae-Familie ergeben. Einige können als morphology than the above-ground vegetative eingebürgert oder sogar potentiell invasiv angese - parts. They have a shallow distribution, which en - hen werden [als Opuntia dillenii (Ker Gawl.) ables them to exploit limited rainfall, and are rich Haw.], während andere hier zum ersten Mal für in root hairs. Associations with fungi and bacteria Nordafrika berichtet werden, entweder vor kurzem can improve the capture of mineral nutrients eingebürgert oder vorübergegend: Echinopsis ey - (Dubrovsky & North, 2002; Land Protection, 2006). riesii (Link) Zucc. ex Pfeiff. & Otto, Opuntia dejecta Recent classifications of Cactaceae recognize Salm-Dyck, Opuntia lindheimeri Engelm., O. four subfamilies (Anderson, 2001; Wallace & Gib - monacantha Haw und O. robusta J. C. Wendl. ex son, 2002; Nyffeler, 2002) including Cactoideae Pfeiff. Für jede dieser Arten werden kurze with 1,222 species (the highest diversity) where Bradleya 38/2020 35 A B C D Figure 1. Austrocylindropuntia subulata , A. Monastir city, coastal area, 3rd January 2017; B. Monastir city, coastal area, clayey slope, 30th May 2019; C. & D. Monastir city, coastal area, clayey slope, 12th June 2018. species have stems with ribs or tubercles and aroles 2009; Guiggi, 2008, 2010, 2014; Guillot et al., 2014; without glochids (Gibson & Nobel, 1986) and Op - Verloove, 2016; Verloove et al., 2017a & b). In untioideae with about 186 species where species North Africa, very few papers have dealt with the are articulated cacti with flat, cylindrical or globu - inventory of Cactaceae (Véla, 2013), hence the orig - lar stem-segments (Gibson & Nobel ,1986; Ter - inality of the present work where 12 taxa are pre - razas-Salgado & Mauseth, 2002). sented and illustrated, most of them not previously The first reports of the cultivation of cacti in Eu - reported for the non-native Tunisian or even North rope date back to the 1500’s, following their intro - African flora. Several species, e.g. Opuntia dejecta duction from the Americas (Howard & Touw, 1981) Salm-Dyck, Opuntia lindheimeri Engelm. O. and soon became common in European collections monacantha Haw. and O. robusta H.L. Wendl. ex and gardens (Anderson, 2001). Today, Europe pro - Pfeiff. are here reported for the first time from duces millions of propagated cacti per year from its North Africa. horticultural industry. However, there remains a persistent demand for species collected from the Materials and Methods wild (McGough et al., 2014). Thus, many introduced Field work carried out by the first and the succulents have been reported as alien species (see fourth authors ( pro parte ) within Central and e.g., Guillot & van der Meer, 2004; Guillot & Lodé, Northern Tunisia (North Africa), mostly between 36 Bradleya 38/2020 2012 and 2018, has revealed new national and even Bab-Bnat, one single population on the roadside, North African records. All records here reported are 36°47′51″N, 10°09′51″ W, 67m a.s.l., 05.03.2018, R. documented by short descriptions of each species. El Mokni s.c. ; Sousse: towards motorway, one sin - The actual degree of naturalization for each taxon gle extended population on the roadside, is assessed based on numerous sources such as 35°50′01″N, 10°33′52″ W, 45m a.s.l., 02.01.2017, R. Richardson et al. (2000), Occhipinti-Ambrogi & El Mokni s.c. ; Monastir: Menzel Harb towards Galil (2004), Richardson & Pyšek (2006), Pyšek et Monastir’s airport, one huge population growing on al. (2004) or Richardson (2011). Further comments the roadside, 35°45′49″N, 10°43′12″ W, 13m a.s.l., on distribution, habitats occupied, etc. and field 11.03.2018, R. El Mokni s.c. photographs of most of them are also presented. The second and third authors assisted with the Probably native only to the Andes of Peru, Aus - identification of most of the species. trocylindropuntia subulata is now one of the most The paper is divided in two parts in both of widely distributed opuntioids of South America, which the taxa are arranged in alphabetical se - particularly in Argentina and Bolivia where it is quence. Nomenclature of the taxa presented is widely cultivated as natural fencing. It has widely mostly in accordance with recent sources (cf. APD, naturalised in parts of southern Europe and in the 2019; Korotkova & Raab-Straube, 2017; online tropics where it was initially introduced as an or - database http://www.llifle.com/Encyclopedia/ namental. CACTI/Family/Cactaceae/). Description: Stem (trunk) 6 to 10cm in diame - ter, the old bark smooth and brown, its areoles Results bearing clusters of 8 spines or more, branches nu - 1. OpuntIOIDeAe SuBFAMIly merous, elongate, unsegmented, 30–50cm long, 4– 1.1 Austrocylindropuntia subulata (Muehlenpf.) 7cm in diameter, more or less clustered but not Backeb., Cactaceae Jahrb. Kakteen . Pereskioideae whorled, at first almost at right angles to main Opuntioideae 1941(2 ): 12. 1942. (Figure 1) stem but soon erect, somewhat fragile, bright ≡ Opuntia subulata (Muehlenpf.) Engelm., Gard. green. Areoles, shortly woolly, sitting in the retuse Chron. 19 : 627. 1883. grooves on upper parts of the tubercles. ≡ Pereskia subulata Muehlenpf., Allgem. Garten - Leaves, persistent for more than a year, green, zeitung 13 : 347. 1845. more succulent than on other species, awl-like, ≡ Cylindropuntia subulata (Muehlenpf.) F.M. nearly at right angles to branch, straight or some - Knuth in Backeb. & F.M. Knuth, Kaktus-ABC : 121. what bowed above, nearly terete, pointed, 5 to 12cm 1936. long, grooved on the underside. Spines, usually 1 or New for the non-native flora of Tunisia and sec - 2 or sometimes spineless (more numerous in older ond record for the flora of North Africa (APD, 2019; stems), slender, erect, strong, straight, pale yellow Korotkova & Raab-Straube, 2017). to greyish white, to 8cm long. Flowers borne toward the ends of the branches, red, not opening widely to TUNISIA: Jendouba: Route Bulla Regia, one single 6cm long. Pericarpels long, tuberculate, awl-like, population on the roadside, 36°31′20″N, with erect scales to 2cm long. Sepals reddish, 08°45′05″ W, 169m a.s.l., 24.03.2018, R. El Mokni minute, 4 to 8mm long or less. Petals broader than s.c. ; idem , Jleyleya, one single extended population the sepals, orange-red or greenish yellow. Style on the roadside, 36°32′57″N, 08°43′06″ W, 206m rose-red except for the whitish base, including the a.s.l., 13.10. 2004–01.08.2017, R. El Mokni s.c. ; stigma-lobes about 3cm long, about as long as the Route Boussalem, after the Bridge “Five Dinars”, longest stamens. Stigma-lobes 5 or 6, slender, or - 36°24′ 02″N, 08°53′58″ W, 157m a.s.l., 01.08.2017, ange-yellow. Fruits, ovoid to oblong to club shaped, R. El Mokni s.c. ; Tabarka, one single population on more or less persistent, sometimes spiny, 6 to 10cm the roadside towards touristic route, 36°57′00″N, long, leafy, with a deep umbilicus, sometimes pro - 08°46′20″ W, 29m a.s.l., 24.10.2014-24.01.2018, R.
Recommended publications
  • Pima County Plant List (2020) Common Name Exotic? Source

    Pima County Plant List (2020) Common Name Exotic? Source

    Pima County Plant List (2020) Common Name Exotic? Source McLaughlin, S. (1992); Van Abies concolor var. concolor White fir Devender, T. R. (2005) McLaughlin, S. (1992); Van Abies lasiocarpa var. arizonica Corkbark fir Devender, T. R. (2005) Abronia villosa Hariy sand verbena McLaughlin, S. (1992) McLaughlin, S. (1992); Van Abutilon abutiloides Shrubby Indian mallow Devender, T. R. (2005) Abutilon berlandieri Berlandier Indian mallow McLaughlin, S. (1992) Abutilon incanum Indian mallow McLaughlin, S. (1992) McLaughlin, S. (1992); Van Abutilon malacum Yellow Indian mallow Devender, T. R. (2005) Abutilon mollicomum Sonoran Indian mallow McLaughlin, S. (1992) Abutilon palmeri Palmer Indian mallow McLaughlin, S. (1992) Abutilon parishii Pima Indian mallow McLaughlin, S. (1992) McLaughlin, S. (1992); UA Abutilon parvulum Dwarf Indian mallow Herbarium; ASU Vascular Plant Herbarium Abutilon pringlei McLaughlin, S. (1992) McLaughlin, S. (1992); UA Abutilon reventum Yellow flower Indian mallow Herbarium; ASU Vascular Plant Herbarium McLaughlin, S. (1992); Van Acacia angustissima Whiteball acacia Devender, T. R. (2005); DBGH McLaughlin, S. (1992); Van Acacia constricta Whitethorn acacia Devender, T. R. (2005) McLaughlin, S. (1992); Van Acacia greggii Catclaw acacia Devender, T. R. (2005) Acacia millefolia Santa Rita acacia McLaughlin, S. (1992) McLaughlin, S. (1992); Van Acacia neovernicosa Chihuahuan whitethorn acacia Devender, T. R. (2005) McLaughlin, S. (1992); UA Acalypha lindheimeri Shrubby copperleaf Herbarium Acalypha neomexicana New Mexico copperleaf McLaughlin, S. (1992); DBGH Acalypha ostryaefolia McLaughlin, S. (1992) Acalypha pringlei McLaughlin, S. (1992) Acamptopappus McLaughlin, S. (1992); UA Rayless goldenhead sphaerocephalus Herbarium Acer glabrum Douglas maple McLaughlin, S. (1992); DBGH Acer grandidentatum Sugar maple McLaughlin, S. (1992); DBGH Acer negundo Ashleaf maple McLaughlin, S.
  • Vascular Plants and a Brief History of the Kiowa and Rita Blanca National Grasslands

    Vascular Plants and a Brief History of the Kiowa and Rita Blanca National Grasslands

    United States Department of Agriculture Vascular Plants and a Brief Forest Service Rocky Mountain History of the Kiowa and Rita Research Station General Technical Report Blanca National Grasslands RMRS-GTR-233 December 2009 Donald L. Hazlett, Michael H. Schiebout, and Paulette L. Ford Hazlett, Donald L.; Schiebout, Michael H.; and Ford, Paulette L. 2009. Vascular plants and a brief history of the Kiowa and Rita Blanca National Grasslands. Gen. Tech. Rep. RMRS- GTR-233. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 44 p. Abstract Administered by the USDA Forest Service, the Kiowa and Rita Blanca National Grasslands occupy 230,000 acres of public land extending from northeastern New Mexico into the panhandles of Oklahoma and Texas. A mosaic of topographic features including canyons, plateaus, rolling grasslands and outcrops supports a diverse flora. Eight hundred twenty six (826) species of vascular plant species representing 81 plant families are known to occur on or near these public lands. This report includes a history of the area; ethnobotanical information; an introductory overview of the area including its climate, geology, vegetation, habitats, fauna, and ecological history; and a plant survey and information about the rare, poisonous, and exotic species from the area. A vascular plant checklist of 816 vascular plant taxa in the appendix includes scientific and common names, habitat types, and general distribution data for each species. This list is based on extensive plant collections and available herbarium collections. Authors Donald L. Hazlett is an ethnobotanist, Director of New World Plants and People consulting, and a research associate at the Denver Botanic Gardens, Denver, CO.
  • Yavapai Gardens Master Gardener Newsletter October/November 2016

    Yavapai Gardens Master Gardener Newsletter October/November 2016

    University of Arizona Yavapai County Cooperative Extension Yavapai Gardens Master Gardener Newsletter October/November 2016 Watch out for the Jumping Cactus by Nora Graf You grew up in the desert if you know that cholla cactus would jump at you if you walked close to it. It is the plant equivalent of a rattlesnake. The good news is that cholla cactus does not wildly leap at you to defend itself, even if the nickname of jumping cactus persists. It is still a wicked plant to grow in your landscape if you have children or pets. On the other hand, the perception of the cactus jumping at you is well-deserved. Cholla consists of jointed thin cylinders. The connections between cylinders are weak and even the slightest brush can break that connection and the dense detachable spines will penetrate almost anything including skin, leather and clothing. The plant also sheds joints readily. When you are walking in the desert it’s easy to bump a joint loose with a foot or elbow. The spines latch on to any surface they touch. The tip of the spine slightly bends when it enters something and becomes a hook, making it difficult and painful to remove. I have personal experience so please take my word, IT HURTS! If you own pets, these can be an expensive choice. Pets tend to experience cholla face first and that means a trip to the vet. Humans get into trouble also. Unless you are like the person in the photo, chances are you can tolerate it. The larger spines can be pulled out with a pair of tweezers or pliers.
  • Digital Version

    Digital Version

    Winter 2017 Volume 40 Number 1 Bears Ears Grasses ...................2 2016 Mulch Pile ..................... 18 UNPS Grant-in-Aid Prog. ........4 American Penstemon Society Sand Cholla .................................5 Rare Opportunity .................. 22 Ann Kelsey Student Fund ......8 Rare Plant Meeting ............... 23 Species Distributions ..............9 Opuntioid ID ........................... 24 Farming For Wildflowers ... 14 UNPS Wildflower Poster .... 25 Celebrate! BEARS EARS NATIONAL MONUMENT NATIONAL EARS BEARS Ways of the Meadow ............ 16 UNPS Officers, Chairs ........... 26 Utah Native Plant Society 2 Native and Exotic Grasses in a Livestock-Free Allotment in Bears Ears National Monument by Mary O’Brien, Grand Canyon Trust, UNPS Canyonlands/Moab Chapter There’s a cattle allotment in the new Bears Ears National Monument in southeastern Utah that is pretty special right now. Listed as the Gooseberry allotment by the Manti-La Sal National Forest (MLSNF), it has had a different name since 2012: White Mesa Cultural and Conservation Area (WMCCA), with reference to the nearby Ute Mountain Ute Tribe town of White Mesa. It also has a different man- agement situation: No cattle grazing, at least until 2021. Under a Memo of Under- Meadow diversity at work: Hesperostipa co- standing between the Ute Mountain Ute mata and Koeleria macrantha...and one Tribe, Grand Canyon Trust, and the Forest sedge. Photo by Mary O'Brien. Service, this is the one area in the entire 1.2-million acre MLSNF that is being permitted to be free of livestock grazing. The cattle-free status of WMCCA was one of three reasons Sue Smith, a retired comput- er scientist and high school science teacher living in Prescott, Arizona, decided to study its native grasses for a Utah State University masters degree in Natural Resource Management.
  • Southwestern Rare and Endangered Plants: Proceedings of the Fourth Conference

    Southwestern Rare and Endangered Plants: Proceedings of the Fourth Conference

    Southwestern Rare and Endangered Plants : UnitedUnited States States DepartmentDepartment ofof Agriculture Agriculture ForestForest Service Service Proceedings of the Fourth RockyRocky Mountain Mountain ResearchResearch Station Station Conference ProceedingsProceedings RMRS-P-48CD RMRS-P-48CD JulyJuly 2007 2007 March 22-26, 2004 Las Cruces, New Mexico Barlow-Irick, P., J.J. AndersonAnderson andand C.C. McDonald,McDonald, techtech eds.eds. 2007.2006. SouthwesternSouthwestern rarerare andand endangered plants: Proceedings of the fourth conference; March 22-26, 2004; Las Cruces, New Mexico. Proceedings RMRS-P-XX.RMRS-P-48CD. Fort Fort Collins, Collins, CO: CO: U.S. U.S. Department of Agriculture, Forest Service,Service, Rocky Mountain ResearchResearch Station.Station. 135 pp.p. Abstract These contributed papers review the current status of plant conservation in the southwestern U.S. Key Words: plant conservation, conservation partnerships, endangered plants, plant taxonomy, genetics, demography, reproductive biology, biogeography, plant surveys, plant monitoring These manuscripts received technical and statistical review. Views expressed in each paper are those of the authors and not necessarily those of the sponsoring organizations or the USDA Forest Service. Cover illustration: Have Plant Press, Will Travel by Patricia Barlow-Irick You may order additional copies of this publication by sending your mailing information in label form through one of the following media. Please specify the publication title and series number. Fort Collins Service Center Telephone (970) 498-1392 FAX (970) 498-1122 E-mail [email protected] Web site http://www.fs.fed.us/rmrs Mailing address Publications Distribution Rocky Mountain Research Station 240 West Prospect Road Fort Collins, CO 80526 USDA Forest Service Proceedings RMRS-P-XXRMRS-P-48CD Southwestern Rare and Endangered Plants: Proceedings of the Fourth Conference March 22-26, 2004 Las Cruces, New Mexico Technical Coordinators: Patricia Barlow-Irick Largo Canyon School Counselor, NM John Anderson U.S.
  • Exceptional Successes with Biological Control of Invasive Cacti in the North-Western Grasslands

    Exceptional Successes with Biological Control of Invasive Cacti in the North-Western Grasslands

    Exceptional successes with biological control of invasive cacti in the north-western grasslands Helmuth Zimmermann & Hildegard Klein Helmuth Zimmermann & Associates (Central) Plant Protection Research Institute, ARC, Pretoria Contents • Introduction to invasive alien plants in the north-western grasslands • The invasive cacti • History of control • Recent biological control successes Cochineal biotypes and the new association effect Before-and-after results of using new biotypes of Dactylopius species • Dealing with new emerging cactus invaders • Conclusion Invasive alien plants in the north-western grasslands Western North West Province Northern Cape North-east Western Cape North-west Free State North-western grasslands Transformer invasive alien plants in the north-western grasslands • Cactus species •Prosopis species and hybrids •Tamarix species The main invaders Prosopis hybrids Tamarix spp The main invaders: the Cacti The cactus species Important species Opuntia Chollas Others Opuntia ficus-indica Cylindropuntia fulgida var. fulgida Tephrocactus auriculata Opuntia stricta Cylindropuntia fulgida var. mamillata Trichocereus schickendantzii Opuntia humifusa Cylindropuntia imbricata Harrisia martinii Opuntia aurantiaca Cylindropuntia pallida Opuntia engelmannii Cylindropuntia leptocaulis Emerging species Cylindropuntia spinosior Opuntia elata Trichocereus pachanoi Harrisia tortuosa The main invaders: cactus species Cylindropuntia pallida Cylindropuntia fulgida var. fulgida The main invaders: cactus species Cylindropuntia fulgida var. mamillata Cylindropuntia imbricata The main invaders: cactus species Opuntia engelmannii Opuntia stricta The main invaders: cactus species Opuntia humifusa Opuntia aurantiaca Chemical control: effective but VERY costly and a serious hazard to the environment. Two Biological Control Agents 1. Cactoblastis cactorum. This biological control agent is important in the biocontrol of Opuntia species. It is effective against small plants. It played a major role in the biological control of prickly pear: Opuntia ficus indica.
  • Vascular Plant Species of the Comanche National Grassland in United States Department Southeastern Colorado of Agriculture

    Vascular Plant Species of the Comanche National Grassland in United States Department Southeastern Colorado of Agriculture

    Vascular Plant Species of the Comanche National Grassland in United States Department Southeastern Colorado of Agriculture Forest Service Donald L. Hazlett Rocky Mountain Research Station General Technical Report RMRS-GTR-130 June 2004 Hazlett, Donald L. 2004. Vascular plant species of the Comanche National Grassland in southeast- ern Colorado. Gen. Tech. Rep. RMRS-GTR-130. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 36 p. Abstract This checklist has 785 species and 801 taxa (for taxa, the varieties and subspecies are included in the count) in 90 plant families. The most common plant families are the grasses (Poaceae) and the sunflower family (Asteraceae). Of this total, 513 taxa are definitely known to occur on the Comanche National Grassland. The remaining 288 taxa occur in nearby areas of southeastern Colorado and may be discovered on the Comanche National Grassland. The Author Dr. Donald L. Hazlett has worked as an ecologist, botanist, ethnobotanist, and teacher in Latin America and in Colorado. He has specialized in the flora of the eastern plains since 1985. His many years in Latin America prompted him to include Spanish common names in this report, names that are seldom reported in floristic pub- lications. He is also compiling plant folklore stories for Great Plains plants. Since Don is a native of Otero county, this project was of special interest. All Photos by the Author Cover: Purgatoire Canyon, Comanche National Grassland You may order additional copies of this publication by sending your mailing information in label form through one of the following media.
  • Echinopsis by Karla Halpaap-Wood

    Echinopsis by Karla Halpaap-Wood

    Vol. 57, No. 2 March-April 2020 Echinopsis www.hcsstex.org by Karla Halpaap-Wood 1 Vol. 57, No. 2 March-April 2020 From the editor Karla Halpaap-Wood Spring is in the air, which means moving plants out and cleaning out greenhouses or other winter protection. April and May will be busy for the club with potting party, field trip and then the Spring Sale. Thanks to the people who contributed to this edition of the KK. MEMBERSHIP KATHY FEWOX & JULY OLSON At the January meeting we had 17 members, and 2 guests. Our newest member at the meeting, Natalie Gib- son, brought an amazing 3D printed pot for the door prize, Liliana Cracraft offered some mammillaria prolif- era seeds, and Andrea Varesic brought a lovely succulent monthly planner. Our winners were Andrea Varesic, Milton Pierson, and Cherie Lee. Our guests were Euginia Legarda and Andrew Durham. The February 26th meeting of HCSS was attended by 19 members. Eight guests also attended the February meeting. Visiting the club were Nathan Bingham, Salvador Salinas, Suzanne Siegel, Paulette McNeese, Susan Torney, and three spe- cial guests from Debrecen, Hungary: Tamas Nagy, and his parents Jozsef and Julia Nagy. Tamas has been working in Houston, but will be returning to Hungary after a stop in Austin. Jozsef has a greenhouse full of amazing cacti, and was justifiably proud of his beautiful cell phone photos. Please send news of HCSS members or their families to kathyfe- [email protected] or [email protected] From left to right: Tamas Nagy, Jozsef Nagy, Josie Watts, and Julia Nagy Calendar: March 25, 2020 7:30 pm Membership Meeting at Metropolitan Multi-Service Center.
  • Native Plants of Deer Canyon Preserve Tree Cholla

    Native Plants of Deer Canyon Preserve Tree Cholla

    Native Plants of Deer Canyon Preserve Tree Cholla: January, 2009 When we find ourselves in the midst of winter, many of us especially appreciate a robust and vibrant flower such as the one produced by the tree cholla, Cylindropuntia imbricata. Even though we will not see these flowers in the flesh for at least another four months (assuming we receive some spring precipitation), the tree cholla is a signature plant of the Preserve and much of New Mexico that stands out at all times of the year. It is a long-lived perennial that grows in deserts, dry plains, and in piñon-juniper woodlands to an altitude of about 7500 feet. Closely related to the prickly pear cacti characterized by flat paddle-like stems (genus Opuntia, named after a Greek city), the chollas have only recently been separated from Opuntia into their own genus, Cylindropuntia, which is characterized by cylindrical stems. Consequently you will often see the scientific name Opuntia imbricata still being used to indicate the tree cholla. Imbricata refers to the overlapping, shingle-like appearance of the stem surface. Other common names used for this plant are cane cholla, chainlink cactus, cholla, walking stick cholla, and even teddy-bear cholla, leading to confusion with similar names for some of the other six species of Cylindropuntia native to New Mexico. Tree cholla is probably the most appropriate name for this plant as it is quite tree-like in appearance with its much-branched cylindrical stems and the fact that it can grow to 15 feet tall, but it usually ranges from 3 to 8 feet in height.
  • Predicting Invasive Plants in California

    Predicting Invasive Plants in California

    UC Agriculture & Natural Resources California Agriculture Title Predicting invasive plants in California Permalink https://escholarship.org/uc/item/2s20g5k8 Journal California Agriculture, 68(3) ISSN 0008-0845 Authors Brusati, Elizabeth D Johnson, Douglas W DiTomaso, Joseph Publication Date 2014 Peer reviewed eScholarship.org Powered by the California Digital Library University of California RESEARCH ARTICLE Predicting invasive plants in California by Elizabeth D. Brusati, Douglas W. Johnson and Joseph M. DiTomaso Preventing plant invasions or eradicating Joseph M. DiTomaso incipient populations is much less costly than confronting large well-established populations of invasive plants. We devel- oped a preliminary determination of plants that pose the greatest risk of becoming invasive in California, primarily through the horticultural industry. We identified 774 species that are invasive elsewhere in Mediterranean climates but not yet invasive in California. From this list, we determined which species are sold through the horticulture industry, whether they are Giant reed (Arundo donax) infesting a wetland area in Southern California. Giant reed was introduced as both an ornamental and erosion control species and is now one of the most invasive species in sold in California and whether they have the state. been reported as naturalized in California. The geographic diversity of California cause, or have the potential to cause, We narrowed the list to 186 species with the has led to broad evolution in native economic damage to the state’s agricul- greatest potential for introduction and/or plants. California has approximately 3,400 tural industry; CDFA has legal authority invasiveness to California through the hor- species of native plants, of which 24% are to regulate plants on this list through found only in the state (Baldwin et al.

  • International Oaks No. 22.Pdf

    INTERNATIONAL OAKS The Journal of the International Oak Society Issue No. 22 Spring 2011 ISSN 1941 2061 Spring 2011 International Oak Journal No. 22 1 The International Oak Society Officers and Board of Directors, 2009 Editorial Office: Membership Office: Béatrice Chassé (France), President Guy Sternberg (USA) Rudy Light (USA) Charles Snyers d'Attenhoven (Belgium), Starhill Forest 11535 East Road Vice-President 12000 Boy Scout Trail Redwood Valley, CA Jim Hitz (USA), Secretary Petersburg, IL 95470 US William Hess (USA), Treasurer 62675-9736 [email protected] Rudy Light (USA), Membership Director e-mail: Dirk Benoît (Belgium), [email protected] Tour Committee Director Allan Taylor (USA), Ron Allan Taylor (USA)USA) Editor, Oak News & Notes 787 17th Street Allen Coombes (Mexico), Boulder, CO 80302 Development Director [email protected] Guy Sternberg (USA), 303-442-5662 Co-editor, IOS Journal Ron Lance (USA), Co-editor, IOS Journal Anyone interested in joining the International Oak Society or ordering information should contact the membership office or see the wesite for membership enrollment form. Benefits include International Oaks and Oak News and Notes publications, conference discounts, and exchanges of seeds and information among members from approximately 30 nations on six continents. International Oak Society website: http://www.internationaloaksociety.org ISSN 1941 2061 Cover photos: Front: Quercus chrysolepsis Liebm. or Uncle Oak, of Palomar Mountain photo©Guy Sternberg Back: Quercus alentejana (a new species) foliage and fruits photos©Michel Timacheff 2 International Oak Journal No. 22 Spring 2011 Table of Contents Message from the Editor Guy Sternberg ..................................................................................................5 Paternity and Pollination in Oaks: Answers Blowin’ in the Wind Mary V.
  • Ecological Site R042XC255TX Sandstone Hill and Mountain, Desert Grassland

    Ecological Site R042XC255TX Sandstone Hill and Mountain, Desert Grassland

    Natural Resources Conservation Service Ecological site R042XC255TX Sandstone Hill and Mountain, Desert Grassland Last updated: 8/10/2020 Accessed: 10/01/2021 General information Figure 1. Mapped extent Areas shown in blue indicate the maximum mapped extent of this ecological site. Other ecological sites likely occur within the highlighted areas. It is also possible for this ecological site to occur outside of highlighted areas if detailed soil survey has not been completed or recently updated. Associated sites R042XC244TX Gravelly, Desert Grassland Can be adjacent to and in a lower position. R042XG586TX Sandstone Hill and Mountain, Hot Desert Shrub Located on south facing slopes along the transition between Desert Grassland and Hot Desert Shrub vegetative zones. An indicator of the Hot Desert Shrub site is the presence of chino grama as the dominant grass. Similar sites R042XC249TX Limestone Hill and Mountain, Desert Grassland Species composition and production will vary but physiographic features are similar. Table 1. Dominant plant species Tree Not specified Shrub Not specified Herbaceous Not specified Physiographic features The site occurs on gently sloping to steep sandstone hills, mountains, and ridges. Slopes range from 3 to about 60 percent. Runoff is low on 3 to 5 percent slopes, medium on slopes of 5 to 20 percent, and high to very high on slopes greater than 20 percent. Aspect influences plant composition and production. Table 2. Representative physiographic features Landforms (1) Hill (2) Mount ain (3) Ridge Flooding duration Very brief (4 to 48 hours) Flooding frequency Rare to occasional Ponding frequency None Elevation 3,500–5,000 ft Slope 3–60% Aspect N, S Climatic features The average annual precipitation ranges from 12 to 14 inches and highly variable from 3 to 32 inches.