— 23 — 



66. BoviSTA URUGUAYENSis Speg. — Fung. Arg. pug. TV, 

 n. 251. 



Hab. Ad terram arenosam subumbradumetorum in insula 

 Pavon fluminis Rio S. Cvuz, Jan. 1882. 



Ohs. Sporae laeves, non v, minutissime papillulato-appen- 

 diculatae. 



67. BoYiSTA CERVINA Bcrk. 



Hah. Ad terram graminosam in coUinis prope Punta 

 Arenas, Aprii. 1882. 



Ohs. Species praecedenti simillima et lacillime una pro 

 altera primo visu sumenda ; dilTert tamen sporisglobosis 

 (4-5 [j. diam.), minute denseque asperulis ac appendice 

 caudali nonnihil majore, nec non caeteris characteribus 

 externis. AmJjae tamen Bovistae ^^lumheae Prs. pla- 

 ribus notis accedentes et saepissime Tulostomae cujus- 

 dam formam sessiiem simulant. 



68. BOVISTA MAGELLANICA SpCg. (u. Sp.). 



Diag. Eubovista; subparvula, subglobosa (1-.3" diam.), 

 superne regulariter convexa, inferne obtuse rotundata, 

 centro non v. vix radiatim rugulosa ; peridium exterius 

 absens; interiusautem tenui-membranaceum, papyraceo- 

 subcartilagineum, tenacellum, laevissimum, sidjnitens, 

 deorsum sordide fusco-nigresccns, sursum albescenti- 

 griseum v. subargenteum, per aetatem centro irregula- 

 riter ac raodice subostiolato-dehiscens ; gleba gossypino- 

 com[)actiuscuIa, mollissima, homogenea, pulvere spori- 

 fero inspersa, tabacino-olivascens ; flocci olivaceo-ful- 

 Yescentes, gracillimi (1-3 \j, crass.), simplices, laeves, non 

 Y. parcissime septulati ; sporae globosae (3-3,5 [j. diam.), 

 grosse 1-guttuIatae, episporio crassiusculo laxissime 

 minutissimeque asperulo-papilluloso, cauda praelonga 

 (8-9 X 1 i^) appendiculatae, oli\ascenti-tabacinae. 



Hah. Vulgata in collinis graminosis prope PuniaArenas, 

 April. 1882. 



