316 Hyiueaoiuycetffi, Agaricaceas, Melanospora», Psatliyra 



fiagili, 11011 iinibonato, 5-10 mm. lato ; superficie e griseo-rube- 

 scenti bruniiea et rubro-tincta, glabra, sublevi ; margine integro, 

 concolori ; lamellis aduatis, confertis, latiusculis, demum obscure 

 brunneo-purpurascentibus v. nigrescentibus; sporis ellipsoideis, 

 utrinque rotundatis, levibus sub lente pallide purpureo-brunneis, 

 7-S ^ 4-5 ; stipite filiformi, pallido v. roseo-isabellino, levi, glabro, 

 1,5 cm. circ. longo, vix 1 mm. cr.; infra tomento primum albo, iii 

 sicco flavescenti, matrice adnato. 



Hab. gregaria ad lignum emortuum in silvis, prope Rio Piedras • 



Porto Rico, Ainer. bor. (Beuoe Fink, J. R. Johnston). \ 



7. Psathyra mexicana W. A. Murrill, Mycologia, 10., 1918, p. 33, Aty- 1178' 

 losimra m. 1. c. p. 21. — Pileo convexo uon umbonato, uon omnino 

 expanso, 1 cm. lato ; superficie glabra, levi, quandoque foveolata 



V. in sicco reticulato-rugosa, uniformiter avellaneo-isabelliua ; mar- 

 gine pallidiori, tenui, integro, uou iucurvato, juventute deflexo ; 

 lamellis aduatis, arcuatis, latis, parum confertis, e albis pallide 

 avellaneis, demum brunneo-purpurasceutibus et acie albidis ; spo- 

 ris ellipsoideis utrinqiie rotuudatis, levibus, pallide brunneo-purpu- 

 rascentibus sub lente flavicantibus, 7 ^ 3,5 <;^ 4-5 ; stipite curvato 

 apicem versus attenuato, albo, infra levi et glabro, ad basim su- 

 blanoso, 1,5 cm. longo 2 mm. crasso. 



Hab. gregaria v. caespitosa ad ligna emortua in silvis udis, Mot- 

 zorongo prope Cordoba Mexico, America bor. 



8. Psathyra albipes W. A. Murrill, Mycologia, 10., 1918, p. 33, Aiylo- ii79 

 spora a. 1. c. p. 22. — Pileo convexo non umbonato, 1 cm. lato ; 

 superficie striata, asperula, pallide avellanea disco isabellino ; 

 margine recto, integro concolori; lamellis aduatis, latiusculis, con- 

 fertis, e albidis rubridis, demum decoloratis ; sporis ellipsoideis, 

 levibus, sub lente puri)ureo-bruuneis, circ. 7-8 ^ 4-5, stipite angu- 

 sto, subcartilagineo, aequali, albo, nitido, cavo, 2-3 cm. longo 1-2 

 mm. crasso. 



Hah. sparsa ad racbidem Bananae, Hope Gardens Jamaica, Ame- 

 rica bor. 



9. Psathyra pallidispora W. A. Murrill, Mycologia, 10., 1918, p. 33, ii80 

 Atylospora p., I. c. p. 22. — Pileo e convexo subexpanso, umbone 

 brevi cuspidato praedito, 1 cm. lato ; superficie minute tomentosa, 

 non striata, pallide fulva particulariter nitida ; lamellis adnatis, 

 subconfertis, postice latis, latericio-fulvis, acie integra et pallida; 

 sporis late ellipsoideis v. ovoideis, levibus, pallide purpureo-brun- 

 neis, sub lente subflavicantibus, 5-G ^ 3,5-4 ; stipite cylindrico, ae- 



I 



