46 DISCOMYCETES. 
Cup 1} inches broad; stem 1 to 14 inches long, } 
inch and more thick, terminated by a few rooting fibrils ; 
sporidia immature, according to Berkeley, 25 x 12un, 
apparently elliptical, larger than in P. ciborium; the 
asci are considerably larger, and of a different character 
(Cooke). 
On the ground (Mr. H. C. Spencer Perceval in Herb. 
Berk.). On a lawn under lime-trees, Glamis Castle 
(Rev. J. Stevenson). 
Supeenus II.—Tarzetra. Cooke. 
Cup nearly entire, naked, stipitate; stem slender, 
varying in length, erect or rooting. (Plate III. fig. 12.) 
Name— (?) Tazzetta (Ital.), a little cup. 
ARRANGEMENT OF THE SPECIES, 
A. Stem erect. 
(a) Sporidia elliptic, rough oie «+ species 4 
(0) Sporidia elliptic, smooth one <i » 5-7 
B. Stem rooting: 
(a) Sporidia elliptic, smooth zs ee » 8-10 
Key To THe Spscizs, 
Stem erect... a a5 Be a ais « 1 
Stem rooting $e ae as ae a 8 
Margin lobed ; sporidia rough .. Ns os +. petaloidea. 
1, {Margin entire ; sporidia smooth on oe «. muralis, 
Margin crenulate iy ae se dis 2 
Fawn colour, farinose .. as as oe 2 laris, 
2. {rion colour, glabrous .. ake ey 3 pees 
Cup turbinate; flesh thick, very fragile esi ammophila. 
Cup becoming plane or defiexed ; flesk thin, fragile. ; rapulum. 
Cup always concave, flesh thin, fragile; stem shorter 
than two preceding : v8 as ae 
3. 
carbonaria, 
A. STEM ERECT. 
(a) Sporidia elliptic, rough. 
4. Peziza petaloidea (nov. sp.). Cooke and Phil. 
Cup expanded, lobate, fleshy, firm ; hymenium rugose 
sub-umbilicate, yellowish brown, margin deflexed ; stem 
rather slender, enlarged upwards into the rugose base of 
the cup; externally verrucose, fuliginous brown 3 asci 
