42 THE SPHAGNACEA OR PEAT-MOSSES OF 
This variety is not so frequent as the typical form, into which 
it gradually passes, and the stem leaves have usually their apical 
cells fibrose, and with one or two large pores. It sometimes grows 
intermixed with the true Sp/. sguarrosum, as in the specimens from 
Sutton Park, issued in my Exsiccata. 
Group B.—SUBSECUNDA. 
Plants soft, slender. Branches terete, their cuticular cells empty ; 
branch leaves erecto-patent or somewhat imbricated, usually sub- 
secund, ovate, rather obtuse with the apex truncate, the margin 
involute in the upper half. 
5. Sphagnum tenellum, Exruart. 
Pi. VI. 
Dioicous, slender, extremely fragile, pale greenish yellow, the 
stem with two layers of cuticular cells. Stem leaves ovate-oblong, 
with a broadish border of narrow cells. Branches with large 
retort cells recurved at neck; branch leaves ovato-lanceolate, 
3-toothed at apex, with a broad border ; hyaline cells porose on the 
upper surface, reticulate-fibrose; chlorophyllose cells triangular, 
interposed between the hyaline at back. 
Synon.—Sph. denellum, Euru. in Herb. Petrop. (1795), teste Lindberg. 
Horrm. Deutschl. Fl. ii. p. 22, n. 1, in obs. (1796). Prrsoon, Mss. in Herb. 
Swartzii, Brip. Mant. Musc. p. 1 (1819), et Bryol. Univ. i. p. 4 (1826). ROut. 
Moosgesch. Deutschl. i. p. 42. Harr. Skand. Fl. ed. 9, ii. p. 83 (1864). Linpp: 
in Ofv. K. Vet. Ak. Forh. xix. p. 142, n. 13 (1862). JENSEN, in Nat. For. Vid. 
Medd. 1863, p. 238. FI. Danica, t. 2755 (1867). Hox. Syn. Br. Moss. p. 23 
(1873). Brairuw. Sphag. Brit. Exsic. n. 11 (1877). Non Nexs, Hscu. Sr. Bryol. 
Germ., nec Funck, Taschenh, 
Sph. cymbifolium vax. tenellum, Brip. Muse. Rec. ii. pt. 1, p. 24 (1798). 
Swartz, Adnot. Bot. p. 71. 
Sph, obtusifolium var. tenellum, WEB. Mour, Bot. Tasch. p. 72 (1807). 
Sph. molluscum, Brucu, in Regens. Fl, 1825, ii. p. 633. Mouc. NEsTL. St. 
Crypt. Vog.-Rhen. fasc. 9, n. 808 (1826), cum obs. “ Zestante cel, Persoon in litt. 
species a suo Sph. tenello vix ac ne vix diversa.” Briv. Bry. Univ. i. p. 753. Hien. 
Musc. Germ. p. 26 (1833). C. MULL. Syn. Muse. i. p. 95 (1849); Deutschl. Moos. 
p. 125 (1853). Wus. Bry. Brit. p. 19, t. lx. (1855). Harrm. Skand. Fl. ed. 7, 
p. 398 (1858). Scuimp. Torfm. p. 71, t. 21 (1858); Synops. p. 682 (1860), et 
ed. 2, p. 846 (1876). BERKEL. Handb. Br. Moss, p. 306, t. 2, fig. 3 (1863). MILDE, 
Bryol. Siles. p. 394 (1869). ScHLIEPH. in Verh. Z. B. Gesel. Wien, 1865, p. 406. 
Kuinoer. in Schr. der K. Phys. ik. Gesel. zu Konigs. 1872, p. 9. 
Dioicous ; in dense soft tufts,. pale greenish yellow or tinged 
with ochraceous above. 
