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HANDBOOK OP 
Family III. HYDNEI. 
Hymenium inferior, or on both sides, spread over the surface of 
spines, teeth, tubercles, crests, or persistent papilla?. 
Genus 38. HYDNUM. Linn. 
Hymenium inferior, aculeate ; spines subulate, separate at the 
base. Fleshy or woody fungi, stipitate, sessile, or resupinate. 
I. Mesopus. Stem central. 
* Cabnosa. Substance fleshy. 
918 . Hydnum lsevigatum. Swartz. Fr. Hym. Eur. 599. 
Sverig. Scamp, t. 81. Sacc. Syll. 6624. 
Pileus fleshy, compact, firm, regular, plane, even, smooth, umber 
(10-16 c.m. diam.), margin circinate (not repand) ; stem thick, 
even (variable) ; spines thin, paler; spores 10-15 p long. 
Solitary in woods. Queensland. Tasmania. 
919 . Hydnum repandum. Linn. Fr. Hym. Eur. 601. Sver. 
Svamp. t. 15. Sacc. Syll. 6633. 
Pileus fleshy, fragile, rather repand, smooth, deformed, pallid (5- 
16 c.m. diam.), sometimes floceosely pruinose ; stem rather short, 
of the same colour (2-6 c.m. long, 2-3 c.m. thick); spines un- 
equal, of the same colour ; spores globose, obtusely apiculate at 
one end, hyaline, 5-8 p. 
In woods. Edible. Tasmania. 
920 . Hydnum ambustum. Che. Mass. Grev. xvi., 32. 
Pileus fleshy, membranaceous, convex, then plane, smooth, brick- 
red, turning black (|-| in. broad) ; stem erect, slender, equal, 
smooth, paler than the pileus (1 in. long), somewhat casspitose, 
often rooting; spines equal, acute, white ; spores globose, 8-10 p. 
On sandy soil. Victoria. 
921 . Hydnum crocidens. Cooke Grev. xix., 45. 
Mesopod. Pileus fleshy, thin, plane, rather umbilicate, smooth, 
even (1-1^ in. diam.), ochraceous yellow; stem central, slender, 
equal, even, or longitudinally striate, when dry smooth, of the 
same colour as the pileus (l£ in. long, 2-3 m.m. thick). Spines 
rather long, aculeate, reaching the stem, but scarcely decurrent, 
shorter towards the margin, flexible, golden yellow; spores subglo- 
bose, 4-5 p. 
On the ground. Victoria. (Fig. 69.) 
II. Lignosa. Pileus tough, woody or leathery. 
922 . Hydnum nigrum. Fr. Hym. Eur. 605. Sacc. SylL 
6657. 
Pileus corky, rigid, toment.ose, without zones, blue black (10-12 
c.m. broad) internally and the stout stem black (2| c.m. long), 
margin and spines white ; spores globose, papillose, hyaline, 4-5 p 
diam. 
In woods. N.S. Wales. 
