EUROPE AND NORTH AMERICA. 33 
internally on the wall where united to the chlorophyllose cells, all 
fibrillose, with several large pores at the margin; chlorophyllose 
cells triangular in section, interposed between the hyaline on the 
concave surface of the leaf. Fruit unknown. 
Hazs.—Swamps in mountain districts. V. America: Manchester ponds, Ocean 
County, New Jersey (Austin). First found by Schwanecke in Porto Rico. 
This fine and rare species worthily heads the genus, and with 
the two following and Séh. Herminieri, Scutmp., from Guadaloupe, 
constitute a small natural group having the internal lateral wall of 
the hyaline cells variously covered with crests or papillae. The 
present may be at once distinguished by the beautifully fringed 
margin of the branch leaves, and by the curious downward pro- 
longation of the transverse wall of the cuticular cells of the 
branches, which may be readily observed in the series of cells at 
each lateral margin. 
2. Sphagnum Austini, SuLiivant. 
Pu. iif, 
Dioicous, green above, ochraceous or brown below, the stem 
with four layers of cuticular cells. Stem leaves lingulate, obtuse. 
Divergent branches two, attenuated, the cuticular cells spirally 
fibrillose. Branch leaves closely imbricated, ovate-oblong, some- 
what cucullate, squamose at back; chlorophyllose cells obtusely 
trigonous, placed between the hyaline on inner surface of leaf, and 
transversely crested with papillae where united to them. 
Synon.— Sph. Austini, SuLL. in Aust. Musci Appal. p. 3, n. 2 (1870), et Ic. 
Musc. Suppl. t. 1, p. 9 (1875). Linps. in Act. Soc. Sc. Fenn. x. p. 280, in addend. 
(1872), in Bot. Not. 1873, p. 45, et in Not. ur Sallsk. pro Fn. et Fl. Fenn. Forh. 
xiii. p. 391 (1874). BRarrHw. in Monthl. Micr. Journ. May 1873, p. 215,'t. 17, et 
Sphag. Brit. Exsic. n. 1 (1877). Cooks, Grevillea, ii. p. 61 (1873). ScHIMp. 
Synops. ed. 2, p. 849 (1876). 
Dioicous, in elevated densely-cushioned tufts ; soft, robust, pale 
green above, fusco-ochraceous below. Stems 4-8 in. high, fre- 
quently dichotomous, dark brown; cells of the peripheral layers 
strongly incrassate, red brown; cuticular cells in four strata, the 
outer quadrato-hexagonal, without fibres, the inner with very fine 
fibres and large pores. Stem leaves erect, lingulate, obtuse, 
minutely fringed at apex; the hyaline cells empty above, fibrose 
and porose below. Branches closely placed, three in a fascicle, 
two divergent, arcuate, attenuated towards point, one pendent, 
D 
