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Two New Mosses of Grimmiaceae for Iranian Bryoflora

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Two New Mosses of Grimmiaceae for Iranian Bryoflora Nova Biologica Reperta 3 (2): 163-166 (2016) 163/109 دو گونه جدید از تيره Grimmiaceae برای فلور خزهای ایران 2 * 1 سعید شیرزادیان و سمانه آخوندی درزیکﻻئی دریافت: 22/22/1931 / پذیرش: 1931/20/23 1 مؤسسه تحقیقات گیاهپزشکی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران 2 گروه زیست شناسی دانشگاه آزاد اسﻻمی، واحد اسﻻمشهر، تهران، ایران * مسئول مکاتبات:[email protected] چکيده. دو گونه خزه جدید به نامهای Grimmia dissimulata و Schistidium pruinosum متعلق به تیره Grimmiaceae برای فلور خزهای ایران از استان خراسان رضوی گزارش میشوند. براساس تحقیقات انجام شده، تا کنون 10 گونه گریمیا و 19 گونه شیستیدیوم از ایران گزارش شده است. در این تحقیق، صفات کلیدی، پراکنش جغرافیایی و همچنین شکلهای هر دو گونه آورده شده است. واژههای کليدی. استان خراسان رضوی، ایران، خزهگیان، گریمیا، شیستیدیوم Two new mosses of Grimmiaceae for Iranian bryoflora Saeed Shirzadian1* & Samaneh Akhoondi Darzikolaei2 Received: 21.04.2016 / Accepted: 30.08.2016 1Iranian Research Institute of Plant Protection, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran 2Department of Biology, College of Basic Sciences, Islamic Azad University, Islamshahr Branch, Tehran, Iran *Correspondent author: [email protected] Abstract. Two species of mosses, namely, Grimmia dissimulata and Schistidium pruinosum, belonging to the family Grimmiaceae collected from Khorassan Razavi province (NE Iran) are found new for the Iranian bryoflora. Based on the recent literature, 16 species of Grimmia and 13 species of Schistidium have been reported from Iran so far. Diagnostic characters, geographical distribution and illustrations are provided herewith. Keywords. bryophytes, Grimmia, Iran, Khorassan Razavi province, Schistidium INTRODUCTION Downloaded from nbr.khu.ac.ir at 1:41 +0330 on Sunday September 26th 2021 [ DOI: 10.21859/acadpub.nbr.3.2.163 ] The family Grimmiaceae is commonly found gr- genera, i.e. Niphotrichum (Bednarek-Ochyra) Be- owing in temperate to polar zones and tropics to dnarek-Ochyra & Ochyra, Coscinodon Spreng., alpine regions including about 200 species in 10 Grimmia Hedw., Schistidium Bruch & Schimp. genera (Streiff, 2005) distributed all over the wor- and Racomitrium Brid. (Smith, 2004). According ld. They are xerophytic and colonizers of bare, us- to the checklist of the Iranian bryoflora published ually dry and exposed rocks and stones, forming by Akhani & Kürschner (2004), 13 species of predominantly dark green to blackish cushions or Grimmia Hedw. are introduced to Iran while tufts with a marked preference for acidic bedrock. Kürsch-ner & Frey (2011) considered 14 species In Iran, this widely distributed family embraces 5- for this genus from Iran. Shirzadian & Akhoondi Darzikolaei. Two new mosses of Grimmiaceae from Iran 164/106 Fig. 1. Grimmia dissimulata. A: habit, B: leaves, C: hyaline hair point, D: cross sections of leaf at different portions, E: leaf cells (derived from M. Lüth, 2012). Fereidounfar et al. (2011) recorded Grimmia stored in the standard paper packets. For morpho- longirostris Hook. from Hamedan province while logical observations, the samples were soaked in Shirzadian (2011) recorded another species of the water for a few minutes for revival. Different genus i.e. G. montana Bruch & Schimp. from Te- plant parts were observed under the microscope hran province and later, he also reported G. plagi- (Olympus-BH2) and photographed. Identification opodia Hedw. from Yazd province (Shirzadian et was made by the help of Smith (2004) and al., 2014). In this way, the quantity of Iranian Gri- Kürschner & Frey (2011). Voucher specimens are mmias reached 16 in number. preserved in the herbarium of the Ministry of Jihad-e-Agriculture ("IRAN") at the Iranian Res- On the other hand, 13 species of Schistidium earch Institute of Plant Protection (Tehran, Iran). Bruch & Schimp. (another member of the family) are so far found in Iran (Akhani & Kürschner, RESULTS 2004, Kürschner & Frey, 2011; Zare et al., 2011). Schistidium differs from Grimmia mainly by its Following two species, namely, Grimmia dissi- columella which in former, it remains attached to mulata E.Maier and Schistidium pruinosum (Wils- on ex Schimp.) G.Roth. are discovered for the fir- Downloaded from nbr.khu.ac.ir at 1:41 +0330 on Sunday September 26th 2021 [ DOI: 10.21859/acadpub.nbr.3.2.163 ] the operculum (Bremer, 1980). Recently, (Akho- ondi et al., 2014) have reported Syntrichia sinens- st time in Iran. is (Müll. Hal.) Ochyra from Azarbayejan province Grimmia dissimulata E.Maier (Fig. 1) (NW Iran). For an updated list of the bryological Plants in lax, readily blackish green tufts, hoary literature on Iran, which would be of great interest when dry with shoots up to 2 cm long. Leaves lo- to the bryologists, reference should be made to the osely appressed to imbricate, ± straight and flat recent work of Ghahremaninejad et al. (2016). when dry, patent to spreading when moist, lanceo- late, tapering to acute at apex, channeled above; MATERIAL AND METHODS margins recurved below with hyaline points to ½ Moss samples were collected from Khorassan length of lamina in upper leaves, minutely dentic- Razavi province (NE Iran) in summer 2015. The ulate. Cross section of costa with 4 cells wide on- samples were air-dried in room temperature and adaxial side, having single layer of 4 guide cells at extreme base. Nova Biologica Reperta 3 (2): 163-166 (2016) 165/101 Fig. 2. Schistidium pruinosum. A: habit, B: leaf, C: lower laminal cells, D: mid-leaf cells, E: cross section of leaf (photo: S. Akhoondi). Basal laminal cells near costa 4-6 times as long and often sinuous walls and only have one or two as wide, leaf basal cells nodulose, above cells qua- rows of smooth and hyaline cells at the border, drate to rounded-quadrate, sinuose, bistratose at whereas, G. trichophylla possesses elongate basal Downloaded from nbr.khu.ac.ir at 1:41 +0330 on Sunday September 26th 2021 [ DOI: 10.21859/acadpub.nbr.3.2.163 ] margins. The specimen was found sterile. Grimm- cells with thin and smooth walls and the hyaline ia dissimulata is often confused with G. trichoph- border often consists of many rows of cells; 3. in ylla Grev. while the nature of costa cross section G. dissimulata, the thickened cell walls bulges in is the best character for differentiation between the cross section of leaf, hence it appears as if the the two (Smith, 2004). In addition, G. dissimulata cells are papillose while this character is not found usually grows on pure limestone, while the latter in G. trichophylla; and 4. two rows of guide cells mostly grows in siliceous habitats. The following can be seen in G. trichophylla but G. dissimulata are some remarkable differences that can easily has just one row (Lüth, 2012). According to Grev- separate the two species: en (2003), G. dissimulata is synonymous to G. 1. Grimmia dissimulata is in loose cushions and austrofunalis Müll. Hal., however, this is not acc- mats habits, but G. trichophylla could be found in epted by Smith (2004) who believes the latter do- dense cushions; 2. cells in the basal part of leaf in es not occur in the northern hemisphere. G. dissimulata are short rectangular with thick Grimmia dissimulata is calcicolous and grows Shirzadian & Akhoondi Darzikolaei. Two new mosses of Grimmiaceae from Iran 166/100 on limestone walls, tombstones and rocks. Bremer, B. 1980. A taxonomic revision of Schistidium (Grimmiaceae, Bryophyta) 1. – Lindbergia 6: 1- Specimen seen. Iran: Khorassan Razavi province, 16. Kalat, Zavin, 59˚ 54 36˚44, 1260 m, on rocks, Fereidounfar, S., Shirzadian, S., Ranjbar, M. and 02.06.2015, 0551 B (IRAN). Ghahremaninejad, F. 2011. A survey to the moss flora of Alvand mountains in Hamedan Distribution. Syria, Turkey, Marocco and 12 Eur- province, W. Iran. – Iran. J. Bot. 17(1): 125- opean countries up to Scotland in the north (Mai- 132. er, 2002, 2010) and Iran. Ghahremaninejad, F., Shirzadian, S. and Fereidounfar, S. 2016. An updated list of the Schistidium pruinosum (Wilson ex Schimp.) bryological literature on Iran. – Annalen des G.Roth (Fig. 2) Naturhistorischen Museums in Wien 118: 181- Plants in dense olivaceous to brownish tufts, rar- 188. ely in patches, often hoary and dry, shoots 1.5-3.0 Greven, H.C. 2003. Grimmias of the world. – (-4.5) cm long. Leaves appressed when dry, erect- Backhuys Publishers, Leiden. patent when moist, straight, lanceolate to ovate, Kürschner, H. and Frey, W. 2011. Liverworts, mosses and hornworts of Southwest Asia. acute to obtuse, keeled. Leaves with stiff hair- (Marchantiophyta, Bryophyta, Anthocerotophyta). points reaching up to 1.6 mm long, terete, straight, Nova Hedwigia (Supplement 139). – J. Cramer entire to spinolose below; margins mostly decurr- Stuttgart. 240 pp. ent to basal part of the leaf. Costa papillose above Lüth, M. 2012. Grimmia dissimulata new to on abaxial side; leaf basal cells rectangular, chlo- Scandinavia. – Lindbergia 35: 86-89. rophyllous, walls moderately thickened, sinuous Maier, E. 2002. Grimmia dissimulata E.Maier and the or not, basal marginal cells quadrate or wider than taxonomic position of Grimmia trichophylla long, walls with ± uniform thickness, cells above var. meridionalis Müll. Hal. (Musci, rounded, slightly sinuous or not, coarsely papill- Grimmiaceae). – Candollea 56: 281-300. ose on both surfaces, partly bistratose, opaque in Maier, E. 2010. The genus Grimmia Hedw. (Grimmiaceae, Bryophyta). A morphological- upper part of leaf, 6-9 µm wide in upper and mid- anatomical study. – Boissiera 63: 1-377. leaf. The specimen was found sterile. Schistidium Shirzadian, S. 2011. Five new records of mosses to pruinosum grows on dry or seasonally moist, usu- the bryophyte flora of Iran. – Phytomorphology ally exposed calcareous rocks and cliffs. 61(3-4): 68-71. Specimen seen. Iran: Khorassan Razavi province, Shirzadian, S., Akhoondi Darzikolaei, S. and Uniyal, P.L. 2014. Seven new records of Kalat, Zavin, 59˚ 54 36˚44, 1260 m, on rocks, mosses in Iran.
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