SPHINCTRINA, | CALICIET. 83 
brownish or blackish, paraphyses usually little developed; hy menial 
gelatine scanty. Spermogones punctiform, black, the sterigmata 
somewhat simple. 
This tribe consists of rather small plants, som2 of which are parasitic 
and readily overlooked, while others are conspicuous from their brigutly 
coloured thalli. The apsthecia sometimes have the stipes abnormally 
branched, and occasionally the capitulum is proliferous. 
29. SPHINCTRINA Fr. Pl. Hom. (1825) p. 120 (ut genus Fun- 
gorum); De Not. Giorn. Bot. It. : 
1846, p. 314.—Thallus none 
proper. Apothecia parasitic, 
chiefly on the thalli of Pertusa- 
rice, globoso-turbinate, sessile or 
substipitate, somewhat shining, 
black, proper margin thick, 
connivent; thecee subpersistent, 
sporal mass black; spores simple 
(very rarely 1-septate), black- 
ish ; hymenial gelatine usually 
more or less tinged with iodine. 
Spermogones with acicular ar- of 
euate spermatia. . 
The few species belonging to « ; 
this genus ae distinguished by Fig. 22. 
the apothecia being parasitic, Sphinetrina turbinata, Fr. —a. Apothecium 
sessile or subsessile, and shining. (in dry state), x 30. 0. Longitudinal 
At first sight they look like section of two apothecia, x30. ¢. Theca 
minute fungi; but their ana- and paraphyses, Xx 350. d. Spores. 
tomical structure places them x500. e. Section of spermogonium, 
among the lichens. os f. Sterigmata and spermatia, 
-IANGS Se 
1. S. turbinata Fr. Sum. Veg. (1846) p. 366.—Thallus none. 
Apothecia small, globose or globoso-turbinate, shortly stipitate, or 
often almost sessile, the sporal mass usually protruded; spores 
simple, globose or subglobose, small, 0,003-8 mm. in diameter ; 
hymenial gelatine pale bluish, then sordid dark-coloured with 
iodine. —Nyl. Syn. i. p. 142, t. v. f. 1; Mudd, Man. p. 256, t. iv. 
f.102; Cromb. Lich. Brit. p. 11; Leight. Lich. Fl. p. 38, ed. 3, 
p. 38.-—Calicium turbinatum Pers. Fung. Suppl. (1797) p. 59. 
Calicium sessile Turn. & Borr. Lich. Br. p. 128; Eng. Bot. t. 2520 ; 
Sm. Eng. Fl. v. p. 188. Acolium stigonellum Gray, Nat. Arr. i. 
p. 482. Lichen gelasinatus With. Arr. ed. 3, iv. p. 8, t. 31.—Brit. 
Exs.: Leight. n. 132; Mudd, n. 241. 
This is read'ly recognized upon the host by the numerous, sometimes 
crowded apothecia, which vary somewhat in size. The spermogones, 
scattered amongst the apothecia, are not unfrequent, with spermatia 
0,012-15 mm. long, 0,001 mm. thick. 
Hab. On the thallus of Pertusaria communis, and sometimes of P. 
fallaz, on the trunks of old trees, chiefly oaks, in maritime upland 
G 
