4 
A MONOGRAPH OF THE BRITISH HYPOMYCES. 
their alutaceous hue when the perithecia are developed. M. 
Tulasne (Sel. Fung. Carp., hi., t. iv., f. 4) gives a figure of the 
conidia, which are globose hyaline bodies born upon verticillate 
septate threads. 
Hypocrea inclusa , B. & Br.,is a species remarkable, both on 
account of its curious habitat as well as for its fructification; it is 
virtually an eight-spored Hypocrea } growing internally upon the 
hymenium of Tuber puberulum . 
The following seventeen species of Hypomyces naturally fall into 
two groups, viz., those of which the ascigerous fructification is 
known and those of which it is unknown. The former may further 
be divided into (a) those having larger acute sporidia, and (b) 
those with smaller obtuse sporidia. 
Ascospores Known. 
A. Sporidia acute. 
1 Hypomyces 
2 
3 
4 
5 
6 
n 
a 
11 
a 
it 
8 
9 
10 
11 
n 
t> 
n 
B. Sporidia obtuse. 
12 
13 
14 
15 
a 
it 
a 
ii 
chrysospermus, Tul. 
asterophorus, Tul. 
lateritius, Tul. 
torminosus, Tul. 
rosellus, Tul. 
aurantius, Tul. 
ochraceus, Tul. 
Tulasneanus, Plow. & Cooke, 
luteo-virens, Tul. 
terrestris, Plow. & Boud. 
Broomeanus, Tul. 
Berkleyanus, Plow. & Cooke, 
aureo-nitens, Tul. 
violaceus, Tul. 
candicans, Plow. 
Ascospores Unknown. 
16 Linkii, Tul. 
17 cervinus, Tul. 
1. Hypomyces chrysospermus, Tul. Conidia , small, white, ovate 
or oblong, obtuse at both ends, sometimes contracted in the middle ; 
*01 to *02 mm. long by *005 to *006 mm. wide. 
Chlamydospores. Sphserical, rough with warts, golden yellow, be- 
coming yellow brown, very abundant ; *013 to *02 mm. in diameter. 
Perithecia. Numerous, crowded, upon and amongst the golden 
powder of the chlamydospores, ovoid, with a conico-attenuated 
apex ; at first hyaline, then golden yellow, smooth; *3 to *32 mm. 
in height. 
Asci. Cylindrical, attenuated below; *12 to *2 mm. long by *001 
mm. wide. 
Sporidia eight, elongated, lanceolate, hyaline usually, unequally 
uniseptate ; *021 to *03 mm. long by *006 mm. wide. 
