– Gymnocalycium spegazzinii Britton & Rose 1922 – Gymnocalycium schuetzianum H.Till & Schatzl 1981 boessii Kiesling, Marchesi & Ferrari 2002 – Gymnocalycium schroederianum Osten 1941 – Gymnocalycium schickendantzii* (F.A.C.Weber) Britton & Rose 1922 – Gymnocalycium saglionis* (Cels) Britton & Rose 1922 – Gymnocalycium robustum* Ferrari & Metzing 2002 – Gymnocalycium rhodantherum* (Boed.) Backeb. – Gymnocalycium quehlianum* (F.Haage ex Quehl) Vaupel ex Hosseus 1926 – Gymnocalycium pflanzii* (Vaupel) Werderm. – Gymnocalycium paraguayense* (K.Schum.) Hosseus 1939 – Gymnocalycium paediophilum F.Ritter ex Schutz 1977 – Gymnocalycium neuhuberi H.Till & W.Till 1992 valnicekianum* (Jajo) Meregalli & Charles 2008 – Gymnocalycium mostii* (Gurke) Britton & Rose 1918 – Gymnocalycium monvillei* (Lem.) Britton & Rose 1922 – Gymnocalycium mihanovichii* (Fric ex Gurke) Britton & Rose 1922 – Gymnocalycium mesopotamicum* R.Kiesling 1980 matoense (Burning & Brederoo) P.J.Braun & Esteves 1995 – Gymnocalycium marsoneri* Fric ex Y.lto 1957 – Gymnocalycium kroenleinii Kiesling, Rausch & Ferrari 2000 uruguayense* (Arechavaleta) Meregalli 2008 netrelianum* (Monville ex Labouret) Meregalli 2008 – Gymnocalycium hyptiacanthum* (Lemaire) Britton & Rose 1922 achirasense (H.Till & Schatzl ex H.Till) G.Charles 2009 – Gymnocalycium horridispinum* G.Frank ex H.Till 1987 – Gymnocalycium fischeri* Halda, Kupcak, Lukasik & Sladkovsky 2002 – Gymnocalycium eurypleurum* F.Ritter 1979 – Gymnocalycium erinaceum* J.G.Lambert 1985 – Gymnocalycium denudatum* (Link & Otto) Pfeiff. – Gymnocalycium chiquitanum Cardenas 1963 – Gymnocalycium chacoense* Amerhauser 1999 ferocius* (H.Till & Amerhauser) G.Charles 2005 – Gymnocalycium carolinense (Neuhuber) Neuhuber 1994 – Gymnocalycium cardenasianum F.Ritter 1964 – Gymnocalycium capillaense* (Schick) Hosseus 1926 – Gymnocalycium calochlorum* (Boed.) Y.ito 1952 – Gymnocalycium bruchii* (Speg.) Hosseus 1926 – Gymnocalycium bodenbenderianum* (Hosseus ex A.Berger) A.W.Hill 1933 – Gymnocalycium berchtii G.J.A.Neuhuber 1997 – Gymnocalycium anisitsii* (K.Schum.) Britton & Rose 1922 – Gymnocalycium albiareolatum Rausch 1985 Īrgentina (Buenos-Aires, Catamarca, Chubut, Cordoba, Corrientes, Entre Rios, Jujuy, La Pampa, La Rioja, Mendoza, Misiones, Neuquen, Rio Negro, Salta, San Juan, San Luis, Santa Fe, Santiago del Estero, Tucuman), Bolivia (Chuquisaca, Cochabamba, Potosi, Santa Cruz, Tarija), Brazil (Mato Grosso do Sul, Rio Grande do Sul), Paraguay (Alto Paraguay, Boqueron, Concepcion, Cordillera, Paraguari, Presidente Hayes), Uruguay (Durazno, Rio Negro).Ĭurrently 60 recognised species + 18 subspecies : schroederianum) up to 3000 m in altitude (6. It is found in the mountains of southern Bolivia and northern Argentina, in the warm and wet plains of southern Brazil, dry savannas of Paraguay (Chaco), and southern Argentina in rather mountainous and cold regions (where frosts prevail), from 50 m (G. It grows in mountains, on rocky hillsides preferably in the shade among grasses, under shrubs, often at ground level, cryptic, on gritty, rocky, clayey or sandy soils, among granitic rocks, in areas of erosion, in cracks or on fallen rocks, on rocky outcrops among mosses and lichens, in pockets of humus mixed with quartz gravels, with plant debris, more rarely in full sun, in grasslands, near salt lakes or fossil dunes (Gymnocalycium marsoneri subsp. The genus Gymnocalycium has a very wide geographical range and habitats are very diverse. Dispersion of seeds, and according to their structure, provided by ants (myrmecochory), also by rainwater (hydrochory). Extremely variable seeds (a basis for the classification of the genus). Fruits globose to elongated, dry or fleshy, dehiscent laterally, bursting or deliquescent, floral remains persistent. wittmannii), Colletidae (Cephalocolletes rugata), Halictidae (Augochlora semiramis, Augochloropsis euterpe, Dialictus sp.) Megachilidae (Lithurgus rufiventris) (Schlindwein & Wittmann 1995, 1997). volitans, Ptilothrix fructifera),Īpidae (Plebeia emerina, P. superba), Anthophoridae (Ancyloscelis fiebrigii, Lanthanomelissa completa, Ceratina asunciana, C. Areoles rather large, spines variable, never hooked.įlowers diurnal, subapical, funnel-shaped to bell-shaped, white, creamy-white, yellow, pink, red, tube with large scales and hyaline margins, areoles naked, pollinated by bees: Andrenidae (Acamptopoeum prinii, Anthrenoides micans, Arhysosage cactorum, Callynochium petuniae, Psaenythia annulata, P. Ribs rounded, sometimes spiralled, often tuberculate, sometimes chinned. Ī genus of usually solitary low-growing plants, sometimes clustering, globose to shortly cylindrical, with the apex depressed. “Naked calyx” making reference to the hairless and spineless floral tube of the genus.
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