296 
CRYPTOGAMIA. FUNGI. Helvelea. 
dry, tough, leathery or woody, grey with age, one-tenth to half an inch 
over. Flesh white. Bolton. 
(Small Semi-globular Hydnum. E.) On a piece of decayed oak. 
Hyd. diaph'anum. White, membranaceous, tender, spreading: prickles 
short, undivided. 
Substance tender, rather gelatinous, forming a thin membrane, on the 
under side of which, pointing downwards, are found the prickled-shaped 
substance, of the same colour with the membrane. I know not in 
what respect Hyd. mucedo differs from this. 
(Diaphanous Hydnum. E.) Growing under a hollow bank near Solihull, 
and found there two successive years by the Rev. Mr. Bree. 
« Oct.—Nov. 
Hyd. barba-jo'vis. Tawny, membranaceous, spreading, the ends of 
the prickles pencil-shaped. 
{Sowerby 328. E .)—Bull. 481. 2. 
I have not seen it in fruit, but the representation of it in that state in Bul- 
liard’s figure is not unlike the fructification of B.fulva in pi. xviii. f. 
5. a. (Sowerby observes that under the microscope the structure of this 
plant appears curious. The points are irregular, whitish and downy, 
somewhat branching, and in their later state protruding other points of an 
orange colour, which are covered with hairy spiculse. E.) 
(Beard-like Hydnum. E.) On the under side of decayed wood lying on 
the ground. Oct. 
HELVEL'LA. # Pileus on a stem : smooth on both sides: 
seeds thrown out from the under 
surface, f 
Hel. agaricifor'mis. (Bolt.) Stem cylindrical, white; pileus hemis¬ 
pherical, white. 
Sowerby 67 — Bolt. 98. 1. 
Stem half an inch high, not thicker than a pin. Pileus the size of a rape 
seed. Grows single or in clusters. Bolton. 
(Agaric-shaped Helvella. Helotium aciculare. Pers. E.) Woods, in 
moist and shady parts about the roots of trees, under mosses. About 
Halifax. 
Hel. na'na. Stem cylindrical, white, smooth: pileus lobed and 
crumpled, white above, brown underneath. 
Pileus snowy white, leathery, hard, crumpled and deflected m various 
forms; smooth and brown underneath; about three-tenths of an inch 
over. Stem white, solid, smooth, not at all wrinkled, a quarter of an 
inch high ; thick as a crow quill. Mr. Stackhouse ; who found it growing 
amongst moss on a shaded bank under trees, near Pendarvis, Cornwall. 
Aug.—Sept. 1791. 
* (Possibly derived from hclus, signifying small salad herbs or sprouts. In Cicero 
the term is coupled with other edible “ fungi.” E.) 
*j* * (“ All the species of this genus are wholesome and excellent: they resemble the 
Morelle, and are constantly employed on the continent in the same way. Greville. E.) 
