63 
On Bog Mosses. 
especially noteworthy in Sph. intermedium are, the pendent 
branches quite concealing the stem ; the indistinct cortical cells, 
which scarcely differ from those of the woody layer ; the branch 
leaves undulated and more or less squarroso-recurved when dry, the 
broadly oblong, apiculate, more densely areolate perichastial bracts, 
and the pale yellow spores. 
The indefatigable Lindberg has satisfactorily settled the nomen- 
clature of both Sph. cuspidatum Ehrh. and Sph. intermedium 
Hoffm. from an examination of original specimens of both authors 
preserved at St. Petersburg ; Hoffmann’s description is otherwise far 
too brief for correct determination, and his Yar. /?, of intermedium 
is also stated by the same authority to belong to Sph. acutifolium 
Ehrh. 
19. Sphagnum cuspidatum Ehrhart. 
Decades Crypt. No. 251 (1791). 
Plate XCIII. 
Syn. — Sphagnum palustre , molle, deflexum , squamis capillaceis, £ fluitans. Dill. 
Hist. Muse. tab. 32, fig. 2, B. (1741). Sph. cuspidatum Ehbh. 1. c. — Hoffm. Deutsch. 
FI. II. p. 22 (1796).— Smith FI. Brit. p. 1147 (1804). Eng. Bot. t. 2092 (1809). 
Turner Muse. Hib. p. 6 (1804). — Bridel Sp. Muse. I. p. 17 (1806). Mant. Muse, 
p. 2 (1819). Bry. Univ. I. p. 14 (1826).— Weber & Mohr Bot. Tasch. p. 74 
(1807). — Schwagr. Supp. I. P. I. p. 16, tab. VI (1811). — Schkuhr Deutsch. 
Moose p. 16, Tab. 7 (1810). — Rohling Deutsch. FI. III. p. 35 (1813). — Schultz 
Supp. FI. Stargard. p. 65 (1819). — FI. Dan. Tab. 1712 (1821). — Huben. Muse. 
Germ. p. 29 (1833). — Dozy & Molkenb. FI. Bat. p. 79. — Berkel. Handb. Br. 
Mosses p. 307 (1863). — Lindb. Torfm. No. 1 (1862). Sph. laxifolium C. Mull. 
Synop. I. p. 97 (1849). Milde Bry. Sites, p. 385 (1869). Sph. cuspidatum Yar. y, 
Bry. Brit. Tab. IV. Sph. cuspidatum fS submersum Schpr. Torfm. p. 61, Tab. XVI. 
fig. 1 /3 (1858). Synop. p. 676 (1860). Sph. laricinum Angstrom, Ofver. Vet. Ak. 
Forhandl. XXI, p. 197 (1864). 
Dioicous. Plants very soft, in loose submersed or floating 
tufts ; light green, deep green, or more or less tinged with yellow 
or brown. 
Stems slender, flaccid, pale green, 6-18 in. or sometimes several 
feet in length; cortical cells not porose, larger, well defined, in 
2-3 strata. 
Stem leaves ovate-oblong, pointed, with the margins involute at 
apex, broadly bordered with very narrow cells, the hyaline cells of 
the upper half with numerous spiral fibres. 
Branches 3-5 in a fascicle, longer, often turned to one side and 
falcate at points ; all divergent, or 1-2 pendent but not concealing 
the stem, those of the coma few and more lax. 
Branch leaves laxly imbricated, narrowly lanceolate, flexuose 
when dry, often somewhat falcato-secund, 3-6 toothed, and with a 
broader border of narrow cells ; chlorophyll cells free on the posterior 
surface, trigono-elliptic in section. 
Capsules in the capitulum, or more frequently scattered on the 
stem, the peduncles being often much elongated. Pericheetial bracts 
