EUROPE AND NORTH AMERICA. 75 



Hab. — Among grass, by the shady sides of streams. 



England ': Darnholm, Goathland, Yorkshire (Braithwaite) ; about Ulverston, 

 Lancashire (Miss Hodgson) ; Barbon Fell, Westmoreland (Barnes) ; Penzance, 

 Cornwall (Curnow). 



What I assume to be this variety grows in loose tufts, having 

 large flexuose branches, and large somewhat divergent leaves with 

 a slight gloss. 



15. Sphagnum Wulfii, Girgensohn. 



Pl. XXII. 



Monoicous ; robust, more or less rufescent, the stem with two 



layers of cuticular cells. Stem leaves small, dilated at base, 



Ungulate, rather acute, without fibres or pores. Branches 7-12 in 



a fascicle, their leaves ovato-lanceolate, erecto-patent, with three 



minute teeth ; chlorophyllose cells central, oval or rectangular in 



section. 



Synon.— Sph. Wtilfianum, Girgens. Archiv fur Naturkunde Liv-, Est- und 

 Kurlands, ser. 2, band ii. p. 173 (i860). Bot. Zeit. 1862, p. 247. Russow, Beitr. 

 zur Kennt. Torfm. p. 66 (1864). Milde, Bry. Siles. p. 385 (1869). Austin, Muse. 

 Appal, n. 32 (1870). Braithw. in Monthl. Micr. Journ. Oct. 1874, p. 169, t. 77. 

 Sulliv. Icon. Muse. Suppl. p. 18, t. 9 (1875). Schimp. Synops. ed. 2, p. 838 (1876). 



o 



Sph. pycnocladian, Angstrom, in Ofv. Vet. Ak. Forh. xxi. p. 202 (1 864). Rabenh. 

 Bryoth. Eur. fsc. xv. n. 709 (1864). Schliephacke, in Verh. Z. B. Gesel. Wien, 

 !86s, p. 392. 



Monoicous ; robust, yellowish or brownish green, or sometimes 

 deep green, in loosely cohering tufts. 



Stems 5-12 in. high, simple or sometimes divided, blackish 

 brown, solid, densely ramulose ; cells of the peripheral zone purple, 

 in 5-6 layers, strongly incrassate; cuticular cells in two strata, 

 small, non-porose. Stem leaves small, from a broad base, lingulate- 

 triangular, reflexed, rather acute, eroso-subdenticulate at apex ; the 

 hyaline cells repeatedly divided, without fibres or pores, those in 

 the middle rhomboidal, becoming narrower towards the margin, 

 where they form a border of 3-6 rows. 



Ramuli 7-12 in a fascicle, 3-5 divergent, short, slightly arched, 

 becoming clavate upward and then suddenly pointed ; the rest 

 deflexed and closely appressed to stem, very long, slender and 

 filiform, lax-leaved, often of a pale rose colour ; the porose cuti- 

 cular cells short and scarcely differing from the rest. Branches 

 of the coma short, thick, and numerous, forming a large dense 

 capitulum. 



