Hypnace^.J 99 [Hypnum. 



to middle ; cells uniform, very lax, longish hexagonal, branch-leaves 

 elliptic with a short point. Eerichsetium laxly imbricated, bracts longish 

 ovate, acuminate, nerveless ; seta short, red, smooth. Capsule cernuous, 

 oval with a short neck, olivaceous-brown, lid orange, conical with a long 

 curved beak ; annulus broad, teeth lanceolate-subulate rufous, endostome 

 yellow. Male infl. gemmiform, bracts ovate, pointed, nerveless. 



Hab. — On stones in old hedge-rows and damp shaded walls ; very rare. 

 Fr. 12 — 2. 



Base of an old hedge near WcUr, Somerset (Bitistead). 



A very distinct species, readily known by its dark green crumpled leaves 

 with large lax cells. It is apt to disappear by the growth of weeds and 

 nettles among the stones and rubbish to which it is attached. 



[Note.— Rhaphidostegiuin Schimp. is synonymous with Mitten's genus SematophyUum, 

 and is more appropriately placed in the Stereodontese.] 



Sect. 6. BRACHYTHECIUM Schimp. Growing in lax creeping tufts, 

 the stems irregularly or pinnately branched. Leaves spreading on all sides, 

 glossy, ovate or lanceolate, pointed, serrulate, often plicate, nerved to middle 

 or more ; cells rhomboid or linear, smooth, quadrato-hexagonal at angles. 

 Seta verrucose or smooth. Capsule cernuous, short and gibbous ; lid convex- 

 conic, obtuse or with a short point, peristome perfect. 



This large section is a very natural one, comprising above loo species, 

 some of which may be arranged in closely allied minor groups, which are 

 difficult to discriminate from each other in a sterile state. This applies 

 forcibly to the allies olH. glaciale {Starkei, curtum, campesire, Sec), and for these 

 I have followed Limpricht's detailed descriptions, without being quite 

 satisfied as to the distinctness of all. 



Clavis to the Species. 



Seta roughish in upper half, smooth below. 



Leaves multiplicate. campcstre. 



not plicate, entire. 



Nerved half-way. pseudoplnmosnm. 



nearly to apex. viride. 



rough throughout. 



Nerve reaching half-way. 



Stem-leaves dacurrent, triangular-cordate, suddenly long. 



pointed. Starke!. 



broadly ovate, suddenly short-pointed, glossy. curtiim. 



scarce decurrent, broadly ovate, short-pointed, 



faintly plicate, autoicous. rutabuUwi, 



small, ovato-lanceolate, not plicate. velntinmn. 



broadly ovate, with a short point, multiplicate, 



dioicouf. rivnlare. 



Nerve reaching nearly to apex. 



Stem-leaves longly decurrent, triangular-cordate, not 



plicate. reflexum. 



slightly decurrent, broadly ovate, faintly plicate. glaciale. 



smooth. 



Leaves erecto-patent, serrate, nerved to middle. phmosuni. 



, serrulate at subulate point, nerved above 



middle. glareosuni. 

 erecto-appressed, long-pointed, entire. albicans . 



