436 Proceedings of the Royal Irkh Academy, 
Stem procumbent and creeping, with ascend- 
ing branches ; leaves spreading, cordate- 
ovate, serrate, nerved above half-way 
to apex, 27. H. Swartzii. 
Stem creeping and procumbent, sub -pin- 
nate; leaves small, spreading, ovate- 
serrulate; branch leaves ovate- lanceolate, 
acute, nerved half way, . . . 28. H. pumilum. 
Synoicoiis. — Stems creeping, with erect sim- 
ple branches ; leaves ovate, serrulate, 
nerved almost to the apex, . . . 29. H. speciosum. 
Monoicous. — Stems small, slender, creeping ; 
branches erect ; leaves sub-complanate, 
spreading, lanceolate, rigid, sub- serru- 
late, nerved nearly to the apex, . . 30. H. Teesdalei. 
\\. H. {RJiyncJiostegium) nisciforme (Weiss). Bryol. Europ., vol. v. 
Monogr., p. 11, tab. 515-516. Schimp., Synops. Muscor., p. 
572. Hypnum ruscifolium, Eryol. 33rit., p. 354, tab. 26. Engl. 
Bot., tab. 1275. Hook, and Taylor, MuscoL Brit., Ed. 2, 
p. 177. 
Hab. "Waterfalls, rocks, and stones in rivulets. A very com- 
mon species throughout Ireland. Mr. Wilson mentions a 
curious form of this plant found at Leixlip, Dublin, 
with elongated, cylindrical, or filiform, fasciculate branches, 
and smaller, roundish, very concave leaves, which are sub- 
secund and sub- striate when dry. He suggests that it may be 
the var. alopecuroides, mentioned by Bridel, (Bryol. Univ. 2, 
p. 500), as occuiTing " in Hibernige aquis." 
12. H. {RhyncJiostegnm) confertiim (Dicks.). Crypt. Ease. 4, tab. 
11, f. 4. Bryol. Europ., vol. v. Monogr., p. 7, tab. 510. 
Schimp., Synops. Muscor., p. 568. Hypnum confertum, Bryol. 
Brit., p. 355, tab. 26. Engl. Bot.. tab. 2407. Muscol. Brit., 
p. 178. 
Hab. On trunks of trees, and on stones and walls. Generally 
distributed, though not very abundant. 
13. H. {Ilhync7iosfeyuim)m€yapoUtamm (Blandow.) Bryol. Europ., 
vol. V. Monogr., p. 8, tab. 511 Schimp., Synops. Muscor., p. 
569. Eabenhor., Bryothec. Europ., No. 486. Hypnum me- 
gapolitanum, De Notr., Mant., ISTo. 22. 
Hab. Eields and sand-hills. Between Portrane and Malahide ; in 
fruit, IN'ovember, 1858: Dingle Bav, Kcrrv, Dr. Carrington, 
1868. 
