THE BRITISH TRUFFLES. ^ * 139 
Monog. Tub. t. l.f, 7; TuL Fung. Hyp, t. 6. f. 1; t. 17.f. 5; Smith, 
in Seem, Journ. Bot. iii. p. 11. Tuber fuse am ^ Corda, Icou. i. t. 7- 
f. 298, A^chion fuscinn^ Wollr. FL Germ, ii, 866. Tuber Montagnei^ 
Lesp. Viltadinion Moutagnei^ Zobel in Corda Ic. vi. t. 20, f. 142. 
The discovery of this plant as a British species by Mr. W. G. Smith 
was announced in the January number of this volume. IVIr, Smith 
obtained his specimens from the truffle districts of Somersetshire last 
autumn, and the illustrations accompanying our paper were taken from 
them. It may possibly grow in other parts of the British Isles, and our 
Plate may help to find it. 
Sect. B. — Episj}ore ecJiinulate, 
6. Tnber brimaJe, Mich. — Tubers more or less regularly globose, 
black, rough with polygonal warts, at length smooth and naked. Tlie 
mature flesh blackish-grey, marbled with white veins, Asci numerous, 
with 4-6 spores. Spovidia oblong-elliptic and echinulate, with rigid 
spines. — Yitt. Mon. Tub. t. 1. f. 3; Berk, and Br. Ann. Fat. Hist, 
xviii. p. 80; Berk. OutLBr, Fung. 375. Tuber briimale pnlpa olscura 
odora^ Mich. Nov. Gen. p. 221. t. 103. — This species appears to be 
esculent- 
7. Tuber rufum^ Pico. — Subglobose or irregular, from a quarter of 
an inch to an inch in diameter. Peridium thick, subeartilaginous, 
rimose, minutely verrucose, tawny-ferruginous. Flesh at first soft and 
whitish, at length reddish and firm or horny. Veins from whitish 
becoming livid, mixed with others that are tawny. Asci obversely 
egg-shaped, 1-4-spored (generally 3). Sporidia ellipsoid, tawny, 
studded with sharp points. — Tuber rufim, Pico, Meleth. p. 80; Titt. 
Mon. Tub, t. 1. f. 1; Tub Fung. Hyp. t. 6. f. 2 ; t, 18. f, 2 ; 
Berk, and Br. Ann. Nat. Hist. No. 322 ; Berk. Outl. p. 376. Tuber 
suillum, Bornholz, Colt, de' Tart, Tuber cinereiim, Tul. Giorn, Bot. 
Ital. ii. p. 62, Ooogaster rnfus, Corda, Icon. vi. t. f. 
(R 
Leefe). 
Vittadini states that the odour of this Tuber is strong and nauseous. 
8.. Tuber nitidum, Vitt. Globose or depressed, Peridium thick, 
hard, smooth, shining, and pallid. Flesh at first wliitish, at length 
reddish-brown, hard. Veins whitish, rather numerous, principally 
diverging from a whitish spot at the base. Asci egg-shaped, contain- 
r 2 
