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Turbinicarpus Heliae (Cactaceae), a New Species from Central Mexico

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Turbinicarpus Heliae (Cactaceae), a New Species from Central Mexico Turbinicarpus heliae (Cactaceae), a new species from Central Mexico. s 8.1 October ISSN 2285 – 3987 the passion for cacti and other succulents 2015 Turbinicarpus heliae (Cactaceae), a new species from Central Mexico. contents Xerophilia Special issue No 8.1 - October 2015 is the official first description of Turbinicarpus heliae García-Mor., Díaz – Salim & Gonz. – Bot., sp. nov. 3 · Turbinicarpus heliae García-Mor., Díaz–Salim & Gonz.–Bot., sp. nov. 4 · Taxonomic notes 4 · Aknowledgements 4 · Literature 5 · Figures The graphic structure of this special issue is based on the authors' demand. Founders: Eduart Zimer • Dag Panco • Valentin Posea Nordic representative • Erik Holm Supporter • Mihai Crisbășanu Editor: Eduart Zimer Editorial team's e-Mail: [email protected]. EN edition • Eduart Zimer Graphic layout based on Andrea Cattabriga's pattern. RO edition • Valentin Posea All rights reserved – no part of this publication may be reproduced in any forms SP edition & Field researches • Pedro Nájera Quezada or by any means, without written permission of the Editor. All copyrighted PR & Graphic • Dag Panco photographs have been used under the Creative Commons Attribution 4.0 Cartography • Miguel Angel González Botello International license. Front cover Back cover Juvenile plant - detail of Fig 1. Flowering plant - detail of Fig 1. photo by L. J. García-Morales photo by L. J. García-Morales Contents 2 - XEROPHILIA • Special Issue No. 8.1 - October 2015 | ISSN 2285-3987 Turbinicarpus heliae (Cactaceae), a new species from Central Mexico. LECCINUM J. GARCÍA-MORALES1, JOSÉ F. DÍAZ-SALÍM2, MIGUEL A. GONZÁLEZ-BOTELLO3, CRISTIAN PÉREZ BADILLO4 & CLAUDIO A. FLORES LINCE5 1. Herbario, Departamento de Investigación, Museo de Historia Natural de Tamaulipas, TAMUX, Blvd. Fidel Velázquez M-1 L-1 S/N, Col. Hora- contents cio Terán, C.P 87130, Ciudad Victoria, Tamaulipas, Mexico; e-mail: [email protected] 2. Calle Retorno de Lomas Celeste 602, Lomas Residencial Pachuca, C.P. 42094, Pachuca, Hidalgo, Mexico 3. Privada de Guacamayas 3046, El Quetzal, C.P. 67169, Guadalupe, Nuevo Leon, Mexico 4. Calle Azucenas 102, Col. Colinas del Sur, C.P. 76900, Querétaro, Qro., Mexico 5. Monte Sinaí 117, Fracc. Lomas de Vista Hermosa, C.P. 42026, Pachuca, Hidalgo, Mexico Introduction Turbinicarpus heliae The genus Turbinicarpus (Backeberg) Buxbaum García-Mor., Díaz-Salim & Gonz.-Bot., & Backeberg (1937: 27) is a small group of 20-30 sp. nov. (Fig. 1). species and several infraspecific taxa of small cacti endemic to the Chihuahuan Desert and adjoining Planta affinis T. pseudomacrochele subsp. minimus areas of Central Mexico deserts (Bravo & Sánchez- (G. Frank) Luthy et A. Hofer, caule simplici, spinis Mejorada 1991, Donati & Zanovello 2005, Hunt iuvenilibus maturisque numerosioribus longiori- 2006). On a study developed by Doweld (1998), he busque, caule globoso usque ad brevicylindrico upgraded the taxonomic status of Turbinicarpus atque radice napiformi longiore, maioribus tuber- pseudomacrochele (Backeberg) Buxbaum & Backe- culis, altioribus latioribusque, maioribus latiori- berg (1937: 27) and two additional varieties of this busque (in diametrum) floribus albis fructibusque species, creating the genus Kadenicarpus Doweld ovatis circiter 5 mm longis, seminibus pyriformis (1998: 22), on the basis of the globose to cylindric nigris, circiter 1 mm longis. body, 5–8 straight to slightly curved spines, dry fruit at maturity, ovoid to pyriform seeds with a Type: MEXICO. Hidalgo State: Actopan, 2200 m papillose testa but without a cuticle ornament, elev., 13 February 2014, L. García-Morales 3398 and a big and succulent embryo without perisp- (Holotype ITCV, Isotype GBH). erm. Donati (2003) downgraded the status of Kad- enicarpus to subgenus level under Turbinicarpus Young stems simple, elongated, 40–60 mm × 5–9 remarking the infertility of the back–crosses be- mm, claviform, with 16–20 white pectinate short tween both subgenera due to vicariance, recogniz- radial spines to 1 mm long, appressed, areoles ing two sections with three species and two sub- ovoid, 0.8–1 × 0.2–0.3 mm. Mature plant stems species. This narrow group of poorly known taxa simple, 30–60 × 12–20 mm, clearly separated by a as proposed by Bravo & Sánchez-Mejorada (1991), neck from the roots. Tubercles conical-pyramidal, Glass (1997), Doweld (1998), Lüthy (2002), Guzmán 2–3 mm long and wide at base, dark green with et al. (2003), Donati & Zanovello (2005), and Hunt glaucous tinged areas, arranged in 9–10 spiral se- (2006), comprises 1 to 3 species and several uncer- ries. Main root tuberose or tap root, 40–70 mm tain infraspecific status taxa. long and 15–20 mm wide, with secondary shot- Recent phylogenetic studies done on several roots appearing irregularly. Spines 10–18, radiat- genera of Cactaceae (Hernández-Hernández et al. ing, 2–3 mm long, straight or slightly curved, white; 2011) suggest that the genus Turbinicarpus is poly- 3 or 4 upper spines longer and tortuous, forming phyletic, and position Kadenicarpus as a proper a bunch, white to grayish with darker tips. Areoles independent genus. In the basis of the confus- oval, 1–1.5 mm long and 1 mm in diameter, with ing taxonomy and nomenclature on this group of white felt on the upper area when younger. Flow- cacti, we prefer here the use of the genus name ers funnel form, 15–22 mm long and 20–24 mm Turbinicarpus, and the use of the species level to wide; external perianth segments 7–9, lanceolate, any new names added, until a new taxonomic 10–12 mm long and 1–2 mm wide, white with a revision, proper nomenclatural changes and a pink to magenta midstripe; internal perianth seg- complete phylogenetic study is conducted with all ments 10–12, lanceolate, 10–15 mm long and 2–3 known related taxa. mm wide, with the apex acuminate, white or with a In recent explorations in the State of Hidalgo, fine pink to magenta midstripe. Ovary ovoid, red- Central Mexico, we found few small populations of dish, 3–4 mm long and 2–3 mm diameter, ovary an interesting plant related to Turbinicarpus pseu- walls 1 mm thick. Style white, 10 mm long, stigma domacrochele subsp. minimus (G. Frank) Lüthy & A. lobes 5 to 6, white, crenated, 1–1.5 mm long. Sta- Hofer (2002: 20); that exhibits unique morphologi- mens 60–80, hyaline-white, 8–12 mm long, anthers cal characters that separate it from the later and yellow, 1 mm long. Fruit ovoid, 4–5 mm long and the rest of the known relative taxa; here we pro- 3–4 mm in diameter, dry green with tinged purple. contents pose it as a new species to science. Seeds pyriform, 1 × 0.8 mm, black, constricted at T. heliae García-Mor., Díaz – Salim & Gonz. – Bot., sp. nov. 3 - XEROPHILIA • Special Issue No. 8.1 - October 2015 | ISSN 2285-3987 the micropylar region, testa cells globose. mm) white flowers with a thin middle pink or ma- Etymology: This new species is dedicated to the genta stripe vs. yellow-green (15 × 18 mm). life and legacy of Dr. Helia Bravo-Hollis, for her great contribution to the knowledge of the Cacta- Discussion ceae of Mexico Turbinicarpus heliae extends the known distribu- tion range of the genus Turbinicarpus sensu lato, Distribution and conservation: Few close being the southernmost known species of the ge- contents populations of this species are known to date, nus to now, particularly related to T. pseudomacro- comprising less than 500 plants accounted. The chele subsp. minimus, but with slender and longer habitat of this new plant corresponds to a xero- stems, numerous spine account and white flow- philous scrub (Rzedowski 2005), associated with ers, characters not present in the close related al- some species of cacti, agaves and shrub legumes. lies. The discovery of additional populations of this The soil in the area is dark limestone, with plenty endangered species is necessary to improve the of rock fractions, where the plants live among. knowledge on the biology and distribution of this The distribution range of this plant is about 6 km2; new interesting plant. the plants inhabit the upper slopes of small hills The taxonomic position of this interesting new between 2200 and 2300 m elevation. The main plant is unclear to now, as recent authors have threat to Turbinicarpus heliae is cattle grazing as proposed changes on the specific and subspecif- the habitat is not suitable for agricultural activities. ic status of the close related taxa; we encourage We propose the conservation status of this spe- more morphological and phylogenetic studies to cies as Endangered, in sight of its narrow distribu- understand the relationships between them all. tion and low number plants known throughout its Nomenclatural changes are needed to update the distribution range. new findings through molecular data that support the elevation of the generic status of this small Phenology: Turbinicarpus heliae is an early flow- group of taxa. ering taxon, beginning in late January and extend- ing irregularly into early April, the fructification Acknowledgements occurs 6–8 weeks after pollination. No pollinators To the Museo de Historia Natural de Tamauli- were observed in field, but damaged flowers by pas, TAMUX. ants were present. To the Instituto Tamaulipeco para la Cultura y las Artes, ITCA, for their support on this work. Taxonomic notes: This species is related mor- We are indebted with George Hinton and Eve- phologically and geographically to Turbinicarpus lyn Rios for their comments and reviewing of the pseudomacrochele subsp. minimus, from which it is manuscript. clearly differentiated because of its longer (30–90 We aknowledge specially Dr. Ioana Munteanu mm) single stems (vs. clumping, 20–60 mm), more from the University of Bucharest, Faculty of For- numerous spines account in young (16–20) and eign Languages, Department of Classics, for her mature plants (10–18), and the bigger (22 × 24 valuable help in the revision of the latin grammar.
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