— 70 — 



hand being continued to the base, and there frequently arranged rather remark- 

 ably in three or four vertical series; while the papillae of the internal surface, 

 while very dense are not coarse, but rather fine. The structure is therefore by 

 no means identical; and moreover the leaves are not crisped when dry as in 

 the other two species, though resembling those of V. immersus in all other re- 

 spects, so far as can be judged from the figures and description. There is there- 

 fore some little doubt as to the generic position; unfortunately only a single 

 capsule was present, and that in a worn condition, so that it is possible that a 

 more perfect peristome might show characters conceivably more closely identical 

 with Verrucidens than those exhibited by the present specimen. 

 Blindia Skottshergii Card. f. robusta Card. No. 527. 



I had considerable difficulty in determining this plant which resembled none 

 of the South Georgian species except B. Skottshergii, and that is a much smaller 

 plant, with shorter leaves. The present plant rather closely approached Dicra- 

 num aciphyllum H. f. & W. in appearance, but the nerve section differed. A 

 comparison of Cardot's description of the f. robusta of B. Skottsbergii, (Fl. bryol. 

 des terres Magellan., &c., p. 266), and especially his note on this form under 

 Dtcranum Nordenskjoldii Card, however, cleared up the difficulty, and left no 

 doubt that this was the solution of the problem. This form has been recorded 

 only from the Antarctic Continent. 



Dicranum austro-georgicum C. M. No. 530. A fine species, which has by 

 some means been omitted by Brotherus in the "Musci. " 



Tortula robusta Hook & Grev. No. 529. 



Tortula lepto-syntrichia (C. M.) Broth. No. 533. 



Rhacomitrium lanuginosum (Hedw.) Brid. No. 538. 



Conostomum australe Sw. Nos. 531, 541, The latter in fruit. 



Bartramia patens Brid. Nos. 528, 540, 542. All c. fr. 



Bartramia diminutiva C. M. No. 535. I judge this to be C. Mueller's 

 plant from the small size and the subula toothed but hardly papillose. It can 

 hardly be more than a segregate of B. patens. 



Psilopilum antarcticum (C. M.) Par. No. 539. 



Brachythecium suhpilosum (H. f. & W.) Jaeg. Cum setis. 



The male flowers are large, turgid, with numerous rather large antheridia. 

 Seta stout. 



17 St. Matthew's Parade, Northampton, England, 

 Explanation of Plate IV 



Fig. I. Verrucidens intermedius Dixon. 



la. Leaf X 25. 



lb. Cells at shoulder, X I50. 



ic. Basal cells, X 150. 



id. Capsule, X 25. 



le. Peristome teeth; left, dorsal face; right, ventral do. X 100. 



if. Peristome tooth, lower part, ventral face, X 200. 



Fig. 2. Bryum crateris Dixon. 



2a. Stem, X 2. . ■ 



