fungí guaranitici 243 



Agaricus (Clitocybe) Balansae Speg. (n. sp.) 



Diag. Solitarius, iuodonis ; pileus carnoso-membranaceus (5-6 

 cent, diam.) applanato-subberuisphaericus, profundiuscule um- 

 bilicatus, glaber, subflaccidiis, albas, centnim versns sordidus 

 V. fuscescens, margine non v. vix snbinvolutus, laevis, integer, 

 leniter indulatus (in sicco!); lamellae albae v. vix pallescentes, 

 snbconfertae, latiusculae (2 mili, lat.), membranaceae, acie 

 integerrimae, polymacriae, antice attenuato-acutatae, postice 



• adnatae brevissinieque decurrentes; stipes breviusculus, crassius- 

 culus (2-3 cent. long. — 5-7 mllm. crass.), deorsum teres, fiisces- 

 cens, sursum parce incrassatus et compressus, albus, laevis, 

 glaber, carnosulo-fibrosus, latiuscnle cavus, basi abruptiuscule 

 ac modice noduloso-incrassatus. Sporae ellipticae, saepius in- 

 ferné lateraliter acutatae (7-7,5 X 4-5), hyalinae. 



Uab. Ad terram in sylvis prope Guarapi, Dec. 1881 (sub num. 

 3369). 



Obs. Species habitu Ag. catino Fr. nec non Ag. bnimaliFr. satis 

 simiiis, stipite tamen crassior^ atque cavo, lamellis fere denti- 

 culo tantum decurrentibus statim dignoscenda. 



Agaricus (Clitocybe?) calyx Speg. (n. sp.) 



Diag. Solitarius, inodorus; pileus teniüter carnoso-membranaceus, 

 rigidulus (in sicco), cyatboideo-infundibuliformis, majusculus 

 (10 cent, diam.), sordide albescenti-pallidus v. fulvescens (in 

 sicco), centro minute, laxe, adpresse ac saepe parum manifesté 

 fuscescenti-squamulosus, ceterum glaber, margine erecto, acuto, 

 tenuissimo, subconferte ac majuscule (sed saepe parum conspi- 

 cue) striatus, acie irregulariter repandulo-crenato, crenaturis 

 plus minusve breviter et dense lacero-fissis; lamellae polyma- 

 criae, membranaceo-rigidulae ac fulvo-fuscescentes (in sicco), 

 latiusculae (3,5-4,5 mllm. lat.), acie integerrimae, utrinque 

 attenuato-acutae, in stipite irregulariter decurrenti-productae, 

 saepe subanastomosantes ; stipes erectus, rectus v. vix incurvus, 

 teres, longiusculus (4-5 cent. long. — 6-7 mllm. crass.), rigi- 

 dule subsuberoso-carnosus (in sicco), extus sordide albescens, 

 saepe squamulis plus minusve fuscescentibus ac conspicuis 

 ornatus, deorsum irregulariter et subbreviter squarroso-hirsu- 

 tus, basi abrupto modiceque nodoso-incrassatus adnatusque, 

 intus farctus albus, centro stricte spongiosulus, carne suberoso- 

 fragili, ac subfriabili. Sporae basidiaque non visa. 



