120 



AGARICACE/E 



Acetabularia 



554. C. depluens Gill, (from its watery substance; depluo, to rain) 



a b c. 

 P. resupinate, then reflexed, hygrophanous, rufescent-hoary. 



St. small, lateral, rarely central, or none, white villous. G. 



adnato-decurrent, rufescent. 

 On the ground, amongst moss, sawdust, wood-ashes, sometimes in stoves ; 



rare. Oct. Diam. I in. 



555. C. byssisedus Gill, (from the fibrils on the stem ; byssus, fine 



linen thread, sedeo, to sit) a b c. 

 P. resupinate, then horizontal and reniform, villous, pale grey. 



St. small, white-villous. G. adnato-decurrent, salmon. 

 On the ground, rotten wood, beech ; rare. Sept. -Oct. Diam. £ in. 



Series III. DERMINI Fr. 

 (From the membrane of the pileus; Gr. derma, a skin.) 



Spores various shades of reddish-brown, brown, red, yellowish- 

 brown or dull yellow. \ Genera XXI — XXXI. 



XXI. ACETABULARIA Mass. 

 (From the cup-like volva ; acetabulum, a vinegar-cup.) 



P*r/7 universal, forming a volva. Hymenophore distinct from the 

 fleshy stem. Stem central, simple, volvate. Gills adnexed. Spores 

 pallid-tawny or brownish. 



Fig. 30. — Acetabularia acetabulosa Mass. _ Natural size. 

 A, perfect plant ; b, plant in section. 



Acetabtclaria agrees in structure with Amanitopsis, Volvaria and 

 Chito?iia. 



