SARA Nie Set SU Sa eee Pe 
; 3 ji era hiv i. 
THE MOSSES OF THE AZORES. 67 
in the middle of a leaf < 260; e, leaf point 260; f, perichaetium >< 14; 
g, capsule < 14; h, portion of the mouth of the capsule X 60; i, a tooth 
of the exostome with a portion of the membrane of the endostome X 260. 
Easily known from A. canariense Schw. by the much smaller sizes, the 
shorter and more shortly acuminate leaves, and the more numerous, less 
thickened and colored alar cells, extending higher along the margins of 
the leaf. As far as concerns the vegetative system, A. Treleasei very 
much resembles Leucodon sciuroides Schw., but it is readily distinguished 
from that species by the shape of the perichaetial leaves and especially 
by the structure of the peristome, which agrees exactly with that of 
A. canariense. 
PTEROGONIUM Sw. 
57. P. @Racize (Dill.) Sw. Muse. Suec. p. 26.— Graciosa 
(Blanchy).— Distrib.: Europe, Algeria, Canaries, 
Madeira, California. 
LEPIpoPiLuM Brid. 
58. L. (TETRASTICHIUM ) FonTANUM Mitt. in Journ. Linn. 
Soc. 1863, p. 4.— Flores (Godman).— Distrib.: 
Madeira. 
‘Tuurpium Br. Sch. 
59. T. ramariscinum (Hedw.) Br. Sch. Bryol. Eur. fasc. 
49-51, Mon. p. 7, t. 2 et 3.— San Miguel (Godman ; 
Machado; Brown, Pl. Az. no. 395).— Distrib.: 
Europe, Madeira. . 
BRACHYTHECIUM Br. Sch. 
60. B. sateprosum (Hoffm.) Br. Sch. Bryol. Eur. fase. 
52-54, Mon. p. 16, t. 15 et 16.— San Miguel ( Brown, 
Pl. Az. no. 396). Sta. Maria (Trelease, Pl. Az. no. 
1369, c, in part ).— Distrib.: Europe, Asia, Algeria, 
Canaries, North America. 
Myvrium Sch. 
61. M. HEBRIDARUM Sch. Syn. Muse. Eur. ed. 2, p. 808.— 
Azores (Hunt). Flores (Trelease, Pl. Az. nos. 1370, 
1371 and 1372). Fayal (Brown, Pl. Az. no. 397 in 
