CRYPTOGAMIA. FUNGI. Agaricus. 
201 
Ag. creta'ceus. Gills white, pileus white, convex or widely conical, 
tufted; stem white, club-shaped downwards. 
Sower by 2, right hand and lower Jigures — Bull. 374. 
Gills loose and distant from the stem, white, four in a set. 
Pileus chalky white, tufted with cottony hairs, three to four inches over. 
Stem white, pithy, club-shaped, three to four inches high, one quarter of 
an inch diameter upwards; nearly half an inch below. Ring perm a-* 
nent. 
(Chalk Agaric. E.) Ag. cepoestipes. Sowerby, see Ag. luteus; but it 
seems much more closely allied to Ag. confertus of Bolton, and I think 
they will prove to be the same species. 
On the bark beds of hot-houses. 
*Ag. al/bus. (Bolt.) Gills white, numerous, four in a set: pileus 
white, bluntly conical, brown at the top: stem white, tapering 
upwards. 
Bolt. 153— {Schcejf. 256. is a var iety with gills in pairs and pileus Jlat at 
the top.) 
Gills loose, thin, pliable. 
Pileus smooth, like vellum, milk white, one inch and a half to the apex of 
the cone. Flesh white, thin. 
Stem solid, pure white within and without, largest at the bottom, decreasing 
gradually upwards, splits into fibres; five inches high, half an inch in 
diameter at the bottom, one quarter of an inch at the top. Bolt. 
(White Vellum Agaric. E.) Ag.albus. Schseff. and Bolt. Sheep croft 
at Stannary near Halifax, and elsewhere in sheep pastures. Aug. 
*Var. 2. Gills few: pileus wholly white. 
( Grev. Scot. Crypt. 23. E.)— Bull. 256— Bolt. 155. 
Gills loose, white, soft, few, four in a set. 
Pileus convex, or rather bluntly conical, white, thin, half to one inch over. 
Stem, solid, white, thick as a crow quill, but much thicker downwards, 
where it is sometimes tinged with red ; one inch and a half to two inches 
and a half high. Bolt. (Somewhat tomentose at the base, and springing 
from a tuberous root. Grev. 
De Candolle, Persoon, and Fries, have endeavoured to prove this extra¬ 
ordinary root to constitute a separate plant belonging to the genus 
Sclerotium, but we think not successfully: the subject, however, is a 
curious one, and worthy of further investigation. E.) 
Ag. alumnus. Bolt. Ag. tuberosus. Bull, and Grev. On old plants of Ag. 
integer and other species of Fungi, but rare; (also on the ground, among 
moss and dead leaves. Grev. E.) 
Ag. splen'dens. Gills pure white, numerous, two or four in a set: 
pileus like tarnished copper, glossy, bluntly conical: stem brown¬ 
ish white, tapering upwards. 
Gills loose, very white, very numerous, thin and tender, throwing out an 
abundance of dust-coloured seeds from the edges, and then changing to a 
pinky white. 
Pileus colour of tarnished copper, with a metallic lustre, beautifully 
glossy, scarcely viscid, apparently streaked or fibrous like smoothly 
combed hair, smooth to the touch, bluntly conical, edge parallel to the 
stem, from three to seven inches over. Flesh very white, tender and 
spongy, cracking when fully expanded. 
