1857.] IIAIIE OR SCARCE MOSSES, 177 



Sisymbrium terrestre. Stachys Betonica. Typha angustifolia. 



Sonclius arvensis. Tamus commimis. Vicia Cracca. 



Sparganium ramosum. Teucrium Scorodonia. Vicia sativa. 



Stachys sylvatica. Trifolium repens. Vicia sepium. 



EARE OE SCAECE MOSSES. 



A few Notes on some New or Rare British Mosses. 

 Bij W. Mitten, A.L.S. 



I beg to oflPer to the consideration of bryologists the following 

 few notes, in the hope that, in some small way, they may tend 

 to the advancement of the study of these beautiful plants, and 

 add to the detection of new, or identification of overlooked, 

 species. 



Hypnum hians, Hedwig, Sp. Muse. t. 70. f. 11, 12, 13, 14. — 

 A very common Moss about Hurstpierpoint, and probably else- 

 where; rare in fruit, which is produced in winter. This species 

 grows generally amongst grass, and is very luxuriant on reten- 

 tive clayey soils. 



It is not a little curious that this fine Moss has never yet been 

 enumerated in any European Flora, but has been supposed to be 

 an American species; it exists probably throughout the con- 

 tinent of Europe. Specimens are in my herbarium from difife- 

 rent localities ; and very good ones, with perfect fruit, were in- 

 serted as H. prcelongum in Spruce^s beautiful ' Musci Pyrenaici.' 



Hypnum hians differs from H. Swartzii in its wide, cordate, 

 shining leaves, which are not at all acuminate, and not much 

 altered in drying ; it is not to be compared with H. pralongum, 

 which is H. Stokesii of ' Bryologia Europsea,' and without doubt 

 of Turner as well ; for in this the cauline leaves are always much 

 acuminate, and the whole appearance of the leaf is different. 



Hypnum campestre, Bruch, Bryologia Europsea, Brachythe- 

 cium, t. xi. — Common in Sussex, in pastures, and, with the pre- 

 ceding, luxuriating in clayey poor lands; fruit not very abun- 

 dant ; produced in winter. 



The great similarity of this species to some states of H. ruta- 

 bulum must account for its having been so long overlooked ; it 

 may however be always known by its leaves being much nar- 

 rower, and the seta smooth or nearly so. 



Mnium orthorynchum, Brid., Bryol. Europ. Mnium, t. 5. — 



N. S. VOL. II. 2 A 



