m u s c i. 67 



on the main stem; perigonial leaves broad, ovate; antheridia 5-7. 

 Paraphyses present in both flowers. 



The variety from the Sandwich Islands is smaller, and has a more 

 condensed mode of growth, the stems assurgent, and closely pinnately 

 branched, with more crowded and longer acuminated leaves. 



Plate 16, B. — Hypnum apertum : plant, of the natural size. Fig. 



I. Portion of branch, with leaves. 2. Leaf. 3. Part of leaf, show- 

 ing the reticulation. 4. Cellules of the same. 5, 6. Capsules. 7. 

 Portion of peristome. 8. Pericheetium. 9, 10. Perichgetial leaves. 



II. Male bud. 12. Antheridia. 13. Vaginula. 



C. — Var. /?. Condensatum: plant, of the natural size. Fig. 1. Por- 

 tion of a branch. 2, 3, 4, 5, 6, 7. Leaves. 8. Leaf, showing the 

 reticulation. 9. Capsule. 10. Yaginula. 11. Male bud. 12. An- 

 theridium. 13. Perichaetium. 14. Perichsetial leaf. 15. Portion of 

 peristome. — Details enlarged. 



Sec. 11. Cinclidotoidea : caulis fluitans pluries divisus, folia hirido-viri- 

 dia oblongo-lanceolata, costa-continua, marginibus incrassatis. 



46. Hypnum conspissatum, Hook.fil. & Wils. 



Hypnum conspissatum, Hook. fil. & Wils. in Lond. Jour. Bot. 3, p. 553 ; Flo. Antarct. 

 p. 419, t. 155, f. 3. 



Hab. Orange Harbor, Fuegia ; barren. 



47. Hypnum limbatum, Sidliv. (Tab. 16). 



H. cinclidotoideum fluitans elongatum ramosissimum laxifolium ; foliis 

 oblongo vel Uneari-lanceolatis acuminatis rigidis rnodice carinato-con- 

 cavis costa dor so versus apicem serrata percursis incrassato-limbatis 

 superne serratis, cellulis oblongis subopacis (fl. etfr. deficientibus) . 



Hypnum limbatum, Sulliv. in Proceed. Amer. Acad. Art. Sci. (Jan. 1855). 



Hab. New Zealand, on stones in the bottom of streams. 



