REVISIONS 01" CEYLON FUNGI. ^7 



38, — Psathyra etenodes (B. & Br.) Fetch. 



■ Agaricus {Psathyrella) etenodes B. & Br., Fungi of Ceylon, 

 No. 296, Journ. Linn. Soc, XI., p. 558. 



" Agaricus (Psathyrella) disseminatus P.," in B. & Br., 

 Fungi of Ceylon, No. 297, Journ. Linn. Soc, XI., p. 558. 



Gregarious, densely crowded, on the ground or on decaying 

 wood ; often in large patches covering several square feet. 



Pileus cylindrical or cylindrico-companulate, the apex 

 usually regularly rounded but sometimes obtusely umbonate, 

 8-10 mm. high, 6-13 mm. diameter, membranaceous, ivory- 

 white, becoming grayish- white, ochraceous in the centre, 

 regularly pUcato-sulcate up to the circular smooth centre, 

 sparsely covered with minute spreading hairs ; margin crenate. 

 Stalk up to 2-5 cm. high, 1 to 2 mm. diameter, slightly 

 attenuated upwards, often curved, swollen at the base, trans- 

 lucent, hollow, minutely hairy with spreading hairs, fibriUose 

 at the base or strongly strigose in protected situations. Gills 

 rather broad (2 mm.), distant, usually of two lengths, broadly 

 adnate, sometimes slightly decurrent, white, then pale purple or 

 violet. Spores purple-brown in mass, brown when magnified, 

 oval, 5-8 X 3 -5-4 -5 yu. 



The specimens which were named " Psathyrella etenodes " 

 and " Psathyrella disseminata " constituted Thwaites' number 

 942. He sent two drawings, one of wliich shows the umbonate 

 form ; this was named etenodes, while the one with the rounded 

 apex was referred to disseminata. There seems to have been 

 no attempt to separate the herbarium specimens ; the sheet 

 numbered 942 in Herb. Peradeniya is labelled " Ag. (Psathy- 

 rella) disseminatus " in Berkeley's handwriting, though it 

 contains at least one of the specimens from which the di'awing 

 of etenodes was made. This species has the same habit as 

 Psathyrella disseminata, but it differs in being more cyUndric, 

 white, and clothed with minute, scattered, spreading hairs. 



39. — Psathyrella achnoa B. & Br. 



A. (Psathyrella) achnous B. & Br., Fungi of Ceylon, No. 292, 

 Journ. Linn. Soc, XL, p. 557. 



A. (Psathyrella) auctus B. & Br., Fungi of Ceylon, No. 295, 

 Journ. Linn. Soc, XL, p. 558. 



7(12)09 (62) 



