LIBRARY 

 SEW VORit 



Mvcological Bulletin No. 21 



W. A. KeUcrman, Ph. I)., Ohio State University 



('Dlumbiis, Ohio, Sept. 5, 1904 



The Illustrations. — Fungi to be foimd by everybody are shown in this 

 Xo. and while we have to Ijear the responsibility of three illustrations, it is 

 to the kindness of Dr. "VTin. Trelease that the beautiful cut of Lepiota, Fig. 

 73. is given on page 82. This is supplementary to Fig. 71 which was published 

 on page 80. 



Explanations of the Descriptive Blank. — Eecurriiig to the blank for 

 descriptions of Mushrooms pul)lished in the previous Number for those who 

 wish to study somewhat carefully the Gill-fungi, it has seemed best to sug- 

 gest a few points that may aid beginners. 



First, it is suggested that all specimens be serialJn numbered whether 

 they are thoroughly studied, described or figured, or merely collected and 

 .sent away tor name and comment. Never repeat a number — there is no ob- 

 jection or inconvenience even if the series runs up to hundreds. 



The habitat is quite important — meaning the place in which the specimen 

 is found or usually grows— as in fields, open woods, thick shady woods, on 

 soil, on stumps, logs, etc. 



The liilots can be easily described in brief, plain language, as to size, shape 

 and color; the shape is commonly conve.f like the Common Mushroom, Init 

 the convexity may be greater when it would be crtwj>rtH«/rf/e (bell shape), or 

 it may become expanded or ^>/«»f (flattened) as it approaches maturity. If 

 it has a sharp, deep depression (as in Fig. 70) it is said to l)e in-fun-dih'-ti-li- 

 /orw,- a slight depression is indicated by the word um-hil'-i-cate; \'(\t\vAt^ a 

 boss or knob (;/«?&o) in the centre it is described as lon'-ho-nate. The pileus 

 may be smooth, scaly, striate, moist, viscid (sticky), water-soaked, etc.; 

 its margin may be straight as applied to the stem or incurced. 



I'i^. Ti;. TUK-MKL-LA Al.-m-liA. WhITK TK K-M KI. '-I.A. KlMKi.K. Tllis lll-lllll^S tOtlll- llTdll)) 



of 7'/v „(/.;i»;/ ;•«»;/;, hariujr a frelntiuous coiisistfiicv. wlieu fresh hiiviiiir a soft clammy toiicli and 

 vicldiii^ like a mass ot gelatin'-. The botanists ^mt ifieni in the trrouji of Ba-siil-i-o-Tiiy-oe'-tae to wliieh 

 all the (fill fuu^i aud many others belong. This species is common on rottou wood in moist shaily 

 places. The specimens were collected near Sandusky, Ohio. 



University Bulletin. Series 8. No. 31. Entered as Second Class flatter, Post-office at Columbus. O. 



