Massee— A Monograph of the Geoglosseae . 283 
Syn. — Geoglossum microsporum , C. and P., var. tremellosum , Cke., 
Grev. iv, 109, 1876. 
Geoglossum tremellosum , Cke., Mycogr. 206, f. 347, 1879; Phil, 
Brit. Disc. 39, 1887. 
Leptoglossum tremellosum , Cke., Syll. viii, n. 156, 1889. 
Hah. — On the ground. 
Distr.— Scotland (Rannoch, Dr. Buchanan White). 
As shown by the synonymy, this was first considered as a variety 
of M. microspora , and afterwards raised to specific rank. I prefer 
the varietal position, and indeed have doubts as to whether it is more 
than a mere form. 
Var. littorale. 
Scattered or caespitose, o*5-i*5 cm. broad, black; ascigerous 
portion clavate, unequal, compressed and wrinkled, brittle, viscid. 
Asci fusiform, 100-120X 16-18 /*; spores cylindrical, hyaline, 1-5, 
usually 2 -septate, 50-60 x 5 n ; paraphyses septate, brown, constricted. 
Syn. — Leptoglossum littorale , Rostrup, Bot. Tidssk. xviii, 76, 1892 ; 
Sacc., Syll. Suppl. xi, 2408, 1895. 
Hah.- — Sandy ground. 
Distr. — Denmark (Rostrup). 
Unknown to me. Judging from the diagnosis, this species will 
possibly prove to be only a form of M. microspora. 
Mitrula arenaria, Massee. 
Scattered or caespitose, 2-4 cm. high, 0-5-2 cm. thick, black; 
ascigerous portion irregularly clavate, compressed, even ; stem squamu- 
lose, tinged olive. Asci fusiform, narrowed below into a long pedicel, 
100 x 12-13 /a; spores elongato-cylindrical, hyaline, continuous, often 
with several oil-globules, 25-30x4 —6 ; paraphyses brown, septate, 
tips slightly clavate, crooked. 
Syn. — Microglossum arenarium, Rostrup, Bot. Tidssk. xviii, 76, 
1892; Sacc., Syll. Suppl. xi, n. 2406, 1895. 
Hah. — Sandy ground. 
Distr. — Denmark (Rostrup). 
Unknown to me. Appears to differ from M. microspora in the 
continuous spores and the olive stem. 
Mitrula partita, Massee. 
Glabrous, black, coriaceous, gelatinous ; ascigerous portion tongue- 
