Pl. cell. fol. 14. MUSCI. 374. Hypnum. 753 
Hypnum ramosum fluitans pennatum, Paii Syn. 81, 6. 
- Hypnum riparium, Lin. 8, P. 1595; Engl. Bot. 2060. 
‘On river- “banks, and inundated places.. 
4. Hypnum undulatum. Wavy oetpcoone 
Leaves ovate, pointed, waved across ; ribs 2 at the bot- 
tom, faint; capsule oblong, furrowed, drooping ; /id beaked. 
‘Hypnum repens crispum, cauliculis compressis, Pind a in morem 
per terram sparsis, Rati Syn. 88, 46. 
Hypnun undulatum, Lin, S. P. 1589; Engl. Bot. 1181. 
On woods, and dry heaths. 
Leaves white, membranaceous. 
5. Hypnum denticulatum. Fine-toothed feather-moss. 
Leaves ovate, inclining to lanceolate, pointed; ribs 2 at 
the bottom, short; capsule oblong, cylindrical, inclined ; 
lid conical. 
Hypnum repens filicifolium non ramosum, pediculis et capitulis lon- 
gioribus ad radicem peredicplibuss foliolis utrinque duplicatis, Raii Syn. 
88, 43. 
Hypnum repens filjcifolidm Tamosum, pediculis et capitulis longioribus 
e foliorum alis egredientibus, foliolis utrinque See TEE Dillen, in Raité 
Syn. 88, 44, 
Hypnum denticulatum, Lin. §. P. 1583; Engl. Bot. 1260. 
Hypnum sylvaticum, Lin. Mant. 2,310. 
In woods. 
Leaves ovate, lanceolate, distant, quite flat. 
8. obtusifolium. Leaves ovate, blunt, slightly concave. 
Hypnum denticulatum obtusifolium, Turner M, Hib, 146. 
Hypnum obtusatum, Wahlenb, Lapp. 371. 
Hypnum Donnianum, Engl. Bot. 1446. 
on mountains. 
c. Stems with the leaves not flat ; leaves all round the stem, 
uniform in their direction, not serrated, main rib reaching 
to or beyond the point. 
6. Hypnum medium. Middling feather-moss. 
Leaves ovate, blunt, concave, uncut; main rib reaching 
the tip; capsule cylindrical, nearly upright ; lid conical. 
Hy pnum trichoides, capsulis oblongis in setis brevioribus, Dillen. Musc. 
331. 
Hypnum heterophyllum aquaticum, polycephalum repens, Dillen. Musc.. 
293. 
Hypnum medium, Dickson Crypt. 2,12; Engl. Bot. 12% A, 
Leskea polycarpa, Ehrh. Crypt. 96. 
Hypnum inundatum, Dickson Crypt. 4,17; Engl. Bot. 1922. 
On trees near the ground. 
VOL. I, 3.C 
