142 ANALES DE LA SOCIEDAD CIENTÍFICA ARGENTINA 



rescenti-albescentes glabrae globosae vix inferné leniterdepres- 

 sae (10-15 mm diam. et alt.) parielibus membranaceis aridis 

 pulpa destitutis per aetatem sübdehiscent¡bus,loculis2-4-sper- 

 mis, seminibus badiis (4-5 mm long. = 2,5-3,5 mm lat. = 1 

 mm crass.) donatis, pedicellis praelongis gracilibus (50-100 

 mm long. = I mm crass.) glabris albidis deílexis. Facile, utvi- 

 detur, fructus sub térra malurescunt. 



393. HlMERANTHUS ÁMEGH1NOI Speg., n. Sp. 



Diag. Rhizomate napiformi carnoso, ramis valde abbreviatis de- 

 cumbentibus crassis inferné albis glabris superne canescenti-vil- 

 losis, foliis confertis membranaceo-subcarnosulis utrinque ara- 

 neoso-villosulis late ovatis v. subhaslato ovatis, integris, 

 margine minute dense irregularüerque denticulato-mucronulatis 

 obtusis, basi non v. vix leniter decurrentibus, petiolis sublongio- 

 ribus canescenlibus donatis ; floribus glomeratis, breviter pedicel- 

 latis, calyce 5-partilo, lobis subacutatis, ut petiolis canescenli- 

 bus, corolla late campanulata purpureo- fusca y pulverulento-sub- 

 ineana lobis brevibus obtnsis mucronalis, staminibus medio tubo 

 adfixis glabris ; bacca subexsucca globosa, glabra. 



Hab. In aridis saxosis secus Rio Chico, aut. 1900 (C. A.). 



Obs. Species puleherrima distinctissima. Radix v. rhizoma 

 verticale v. obliquum (150-250 mm long. = 10-15 mm 

 diam.) albescens, glabrum, ápice abrupte multiceps. Cau- 

 les breves decumbentes (40-75 mm long. = i-6 mm crass.) 

 in parle infera, subterránea, albi nudi glabri, in parte 

 supera, exerta, dense foliiferi virescentes plus minusve pulve- 

 rulento-araneosi. Folia erecta, limbis ovalo-ellipticis v. hasta- 

 to-ovatis (20-40 mm long. = 16-25 mm lat.) membranaceo- 

 subcarnosulis obscurissime fusco-viridibus (an purpurascen- 

 tibus?) superne parce araneosis, inferné araneoso-subincanis, 

 ápice obtusissime rotundatis non lobatis sed obsolete grosseque 

 crenatis, marginibus dense minuteque dentato-mucronatis 

 (denticulis utrinque 25-30), basi subinaequilateraliter trunca- 

 tis (rarius subcuneatis) lenissime breviferque decurrentibus, 

 petiolis elongatis (25-45 mm long. = 2-2,5 mm lat.) appla- 

 nato-alatis araneoso-canescentibus. Flores ad furcationes ra- 

 morum 3-S-glomerati, pedunculis breviusculis (5-10 mm 

 long.) pulverulenlo-araneosulis, basi bracleis Iineari-lanceo- 

 latis integris aculis ipsos subaequantibus donatis, suffulti ; ca- 



