HyinenoJnycetae, Agaricaceae, Leucospora, Clitocybe. 53 



arcuatis, confeitis, sporis globosis v. subglobosis, levibus, byalinis^ 

 6-7 {X ; stipite cyliudrico, aequali, coucolori, subcarnoso, cavo, 6 cm- 

 longo 5-7 mm. crasso. 



Hab. solitaria ad terram inter ligiia dejecta iu silvis, prope 

 yenttle Wasbington, Amer. bor. (W. A. Murrill). 

 liO. ClitOCybe atro-alba Murrill, Mycologia 1013, p.207 (corr. atrialba). — 191 

 Pileo e convexo leniter depresso demumque infundibuliformi, pe- 

 rimetro regubiri, usque ad cm. hito-, superficie primum levi, glabra, 

 sicca, fuligineo-atra, demum e cuticula secedente miiiute imbricata; 

 margine integro, concolori. jirescendo fortiter iutiexo; contextu te- 

 nui albo, molli, odore grato ; lamellis decurrentibus, non confer- 

 tis, albis, aetate griseo-decoloratis ; sporis e globosis subglobosis, 

 levibus, hyalinis, granulosis, 8,5-10 * 7-8 ; stipite aequali, v. supra 

 leniter acutato, aetate compresso v. contorto, sicco furfuraceo v. 

 miuute scabro, avellaneo, cavo, cortice submolli donato, 5-10 mm. 

 lougo <}-10 mm. crasso. 



Hab. solitaria v. gregaria in ligno dejecto in silvis prope Seattle 

 Washington (W. A. Murrill), La Honda prope Palo Alto Cali- 

 fornia (W. A. Murrill et L. K. Abrams), Ainer. bor. 



27. ClJtocybe aggregata (Schatf.) — Sylh V p. 160 — var. caerulea i92 

 Voglino, Bull. Soc. bot. it. 1894 p. 121 — Pileus convexus, carno- 

 sus, subsericeus, caeruleus; lamellae inaequaliter decurrentes, cou- 

 fertae, caeruleo-carneae; basidia clavata, 4-sterigmica, 20^8; spo- 

 rae obvatae, granulosae, hyalinae, 8-9*7; stipes inaequalis, farctus, 

 subflbrillosus. 



Hab. in quercetis prope Busalla (Appenn. ligure) Italiae. — A typo 

 differt colore tantum in hac varietate constanter cyanescente. 



28. Clitocybe biformis Peck, in N. Y. State Mus. Bull. 150 [1910] p. 25 193 

 (1911) tab. 6. fig. 9-15. — Pileo carnoso, tenui, firmo, lace convexo 



vel subplano, deinde centro depresso, subumbilicato vel late infun- 

 dibuliformi, giabro, margine levi vel striatulo, pallide luteolo, in 

 centro aliquando luteo, carne albida vel alba ; lamellis tenuibus, 

 confertis, angustis, decurrentibus, albidis, in senectute vel in sicci- 

 tate pallide cinnamomeis; stipite subaequali, firmo, solido faictove, 

 aliquaudo curvo vel eccentrico, basi tomentoso, in colore pileo 

 siinili; sporis subgiobosis vel late ellipsoideis, 5-6*4-5. — Pileus 

 2,5-7,5 cm. lat. ; stipes 2,5-3,5 cm. longus 4-8 mm. crassus. 



Hab. m silvis mixtis, North Elba, Essex Co. Amer. bor. — Aflinis 

 Cl. gilvae sed carnis colore albido, lamellarum coloris mutatione 

 etc. distiucta. 



