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Frailea perbella

Original Publication
K.H. Prestle, Succulenta, 59 (5): 115, 1980

Original Description
Caulis simplex cylindricus ad 1,5 cm diametiens ac parte superterranea 2 cm altus glaucus, radice rapiformi partim ramosa, vertice 2-3 mm impresso aculeis marginalibus fulvis ac areolis confertioribus; costis 24-26, ad 3 mm latis planis circa areolas vix altioribus; areolis oblongo ovalibus 1 mm longis ac 0,3 mm latis, 2-3 mm inter se distantibus pilis conspicue nigris tomentosis instructis; aculeis marginalibus 11, 2,5 mm longis sucineis tenuibus non-pungentibus plane accum-bentibus, in areolis veteribus magis radiantibus, in pede areolarum juvenilium nodoso incrassatis et hic ferrugineis, centralibus deficientibus; floribus infundibuliformibus circa 23 mm longis latisque, pericarpello 7 mm longo ac 8 mm lato squamulis minutis obsito in quarum axillis saetis plus minusve curvatis brunneis ad 5 mm longis in fasciculis de 3-5 et pilis fulvis, receptaculo 4 mm longo squamulis obsito in quarum axillis saetis brunneis in fasciculis de 3-5 et pilis fulvis, foliis perianthii exterrioribus 15 mm longis ac 5 mm latis spathulatis sufflavis in ima parte cum nervo mediali olivaceo-brunneo in acumine unguicolo subtili praeditis margine levibus ac subundulatis, interioribus 14 mm longis ac 3,5 mm latis spathulatis sufflavis in acumine unguicolo subtili praeditis margine levibus ac subundulatis, stylo 10 mm longo flavo stigmatibus 7 albis 3 mm longis pappilosis, staminibus primariis 8-9 mm longis, secundariis in duobus coronis omnibus chloroticis, antheribus 1 mm longis subbrunneis, caverna seminifera 7 mm longa ac 4,5 mm lata cum ovulis funiculis annexis; fructu subovali fusco-viridi 16 mm longo ac 11 mm lato areolis cum 3-5 saetis subcurvatis 2-5 mm longis brunneis et pilis fulvis obsito, in fructus acumine saetis longioribus ac rectioribus; seminibus lintriformibus 2 mm longis 1,5 mm latis nitide castaneis cum lineamentis reticulatis, hili margine loculis minutis sub concamaratis praedito introrsum curvato, hilo ovali basali, micropyla sub hili margine a tergo, hilo membrana tenui clauso, funiculo membranae adhaerenta, pectine a tergo clare visibili, embryone oviformi, perispermio deficiente, cotylidonibus visibilibus. Crescit in Sierra de Aurora in parte septentrionali rei-publicae Uruguayanae, in rupium basaltarium rimus completis cum particulis humosis paucis, in altitudine 350 m. Typus in Herbario universitatis regni Ultraiecti, Hollandia, sub. numero PR 59.

Distribution
North Uruguay and Rio Grande do Sul (Brasil) - Sierra de Aurora.
Paso da Guarda, Brasil

References in Literature
Alweer een artikel over Frailea's. J.J. De Morree, Succulenta (Netherlands) 68(5): 100-103, 1989.
Fascinating Frailea, Part 2: Review of the species from Rio Grande do Sul. Marlon C Machado. Cactus World (BCSS) Volume 25 No. 2 June 2007
Frailea perbella spec. nova K.H. Prestlé. K.H. Prestlé. Succulenta (Netherlands) 59(5): 115-120, 1980.
Op zoek naar cactussen in Rio Grande Do Sul (3). Prestlé, K.H. Succulenta (Netherlands) 60(6): 136-137, 1981.
Phaeodisca-achtige Frailea's. Prestlé, K.H. Succulenta (Netherlands) 59(8): 182-185, 1980.

Comments

Field Numbers
M-470, PR 59, PR 60
A full listing of all associated field collector data can be found on our field number reference pages.

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All material, except where otherwise credited, is Copyright
 © 2005-2007 Paul C. Laney

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