[Vor. 3, 1916] 
406 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
which would be clearly comprehended by it would be con- 
nected with the usual elongated forms of Pistillaria by some 
intermediate species found in Europe, where the species of 
Pistillaria appear to be more numerous and more frequent 
than in North America. 
The present American species may be characterized as 
follows: 
Pistillaria (subgen. Pistillina) Thaxteri Burt, n. sp. 
Fructifications gregarious, pileate, erect, drying whitish to 
eartridge-buff; pileus hemispherical, puberulent, attenuated 
at the base into a cylindric stem composed of hyaline, thin- 
walled, even-walled, parallel hyphae about 13-2 шіп diameter, 
not nodose-septate, not incrusted; basidia simple, subclavate, 
13-17<444 р, with four sterigmata; spores hyaline, even, 
flattened on one side, pointed at the base, 5-9X 34—44 и; no 
eystidia nor paraphyses. 
Fructification 100-110 џ high; pileus 50-110 д in diameter, 
40-50 д long; stem about 60 д long, 20-50 y, rarely 80 u, in 
diameter. 
On rotten wood, West Haven, Connecticut, November 7, 
1888, В. Thaxter, type (in Farlow Herb. and Мо. Bot. Gard. 
Herb., 5724). 
The fructifications are but a fraction of the size of those 
of any other species of the genus and not visible to the naked 
eye. 
