Annual Report of the State Botanist. 69 



"I have found this plant in various sections of the State 

 and always growing in wet places in woods or by streams ; 

 thus I name it O. aquatica." 



Collybia platyphylla Fr^ Baltimore Plate 36 



Collybia radicata Relh. Druid Hill Park Plate 48 



Collybia siticulosa n. sp. Baltimore 1 . . Plate 47 



" Pileus fleshy in the center, thin at margin, at first decid- 

 edly umbonate, then depressed, margin at first involute, 

 ochraceous; lamellae free, not distant, dirty white or pale 

 cream color; stem cartilaginous, hollow, twisted, flattened 

 where it unites with the pileus, very pale ochre. 



" This fungus is particularly tough and dry, so much so 

 that it is unnecessary to submit it to the usual process for 

 preservation. Hence its name siticulosa." 



Collybia subriffua n. sp. Carroll county Plate 49 



"Pileus convex, then expanded, sometimes broadly umbo- 

 nate, then centrally depressed, dark brown at disk, ochra- 

 ceous at the margin, hygrophanous, shining when dry, flesh 

 white, margin thin, split; lamellae white, narrow, adnate, 

 forked, close, turning dirty white in age; stem stuffed with 

 thready particles, nearly equal, blunt at base, flattened at the 

 apex, twisted, striate where it meets the lamella?, pallid; 

 spores .00022X.00034 in. white. 



" The plant was excessively hygrophanous when first col- 

 lected, it then became dry and shining." 



Pleurotus mitis Pers. Druid Hill Park Plate 50 



Pleurotus ostreatus Jacq. Druid Hill Park Plate 51 



"The flesh Is hard and when eaten it requires much cook- 

 ing to make it palatable. According to my own taste the 

 'tree oyster' is much more pleasing to the eye than to the 

 palate. At no time have I ever been able to discover the 

 slightest resemblance to the animal bivalve for which it is 

 named. I have eaten it before and after cooking." 



Pleurotus spatliulatus Pers. Baltimore Plate 52 



Pleurotus euosmus Berk. Druid Hill Park Plate 53 



"I am very doubtful whether the plant figured is truly P. 

 euosmus Berk. I have never met it since 1878." 



The spores of the plant figured are represented as globose, 

 rose colored, .00018 in. broad. The doubt is therefore woU 

 founded. 



Pleurotus sapidus Kalchh. ])ruid Hill Park. . . Plate 54 



Volvaria bombycina Schi'lf. Baltimore county Plate 55 



Volvaria parvulus Weinin. Westeni ]N[aryland Plate 158 



Pluteus cervinus Schtvff. Western iMarvlaiul Plate 157 



