Eypnum.] BRYACE^. 323 



* * Mode of groioth as in the preceding : capside cijlindrical ; 

 opercidum coniccd or short-rostrate. 



8. H. SCitum, Beauv. Plants in aiDpressed green or yellow- 

 ish brown tufts ; stems long, prostrate, 2-3-partite, densely pin- 

 nately ramulose ; branclilets short and slender : stem-leaves 

 broadly deltoid, cordate, acuminate, those of the branches 

 smaller, cordate-ovate, shorter-acuminate, all concave, oj^en- 

 erect; costa pellucid, vanishing above the middle; areolation 

 nearly round, minute; paraphyllia numerous, multiform; inner 

 perichiBtial leaves long-lanceolate, with a long filiform acumina- 

 tion, plicate lengthwise : capsule cylindrical-oblong, erect or 

 slightly curved ; operculum conical-rostrate, curved upward ; 

 annulus large. — Prodr. 69; Sulliv. Icon. Muse. 155, t. 99. 

 Thuidium scituni, Aust. Muse. Appal, n. 300. Mania scitCL, 

 Aust. Bull. Torr. Club, vii. 16. 



Var. sestivale. Inner perichaetial leaves less gradually 

 pointed : capsule subhorizontal, obovate, pale ; pedicel yellow, 

 obscurely scabrous, as in all the group. — Thuidium scitwn, var. 

 cestioale, Aust. Muse. Appal, n. 301. T. cestivum, Aust. Bull. 

 Tor. Club, V. 23. 



Hab. Roots and base of trees, mostly the beech; flowering from 

 August to the end of September, according to exposure; not common. 



This moss is a Thuidium in all its characters. It has been separated 

 by Austin into a new genus, Eauia, on account of its more erect capsule, 

 and the cilia in pairs instead of threes. Other allied species, as //. abie- 

 tinum, have sometimes two cilia, which are even short and irregular. 



9. H. erectum. Stems very slender, covered with para- 

 phyllia ; branchlets erect, nearly simple, dirty yellow : leaves 

 densely imbricate, hastate, lanceolate or oval-lanceolate, clasping 

 at base, narrowed to a long pellucid point ; costa broad, vanish- 

 ing below the apex ; cells of the areolation very small, rounded, 

 chlorophyllose, papillose ; perichjetial leaves narrowly lanceolate, 

 very long filiform-acuminate : capsule cylindrical or ovate-cylin- 

 drical, erect, brown, on a very slender smooth pedicel ; oper- 

 culum yellow, conical, long-rostrate, incurved ; teeth pellucid 

 and tuberculate at base ; segments narrow, gradually attenuate, 

 not perforated ; basilar membrane narrow ; cilia none. — Thu- 

 idium erectum, Duby, Regensb. Flora, Iviii. 284 (1875). 



Hab. Florida [Chapman, in Herb. Delessert). 



Besides the long pellucid point of the leaves, the essential character 

 which separates this species from H. scitum is the absence of cilia. 



