ll'JVnnm. iMUSCI. ^jq 



nroolution, sorrulato ospodiiUy 1,dow an<l remotely .lonticulate above, tl.o capsiilo 

 w.tl.out anmih.s. It dillers IVoin ll.jinitam in its linner narrower less crowde.l 

 more falcate and more narrowly are..late leaves, more distinctly auricled at base, and 

 the larger penstouie with a broader basal membrane. — Bryol. Eur t G02 



Var. cochlCce, Austin. St.un strict, rigid : loaves erect, variegated with purple 

 usually entire above and spirally twisted when dry, distinctly serrate at the sli-iltlv 

 narrowed base - Coult. 13ot. Gazette, ii. 143. JJichelyma ^wartzii, Lesq. in Mem. 

 Calif. Acad. i. 28 ; Sulliv. X- Lesq. 1. c. 2 ed. ii. 344. 



In n,.laM,l swamps, Tulare County {Ihrvrr) ■ in pools on Mount Dana nn.l swan.ps nnar Mrn- 

 docu.o City, Lolandrr. A lui.opcnn spc-ea-s, lorn..sol- which are also lound in the Atlantic States. 



37. H. commutatum, Iledw. Stem procumbent or suberect, pinnately 

 branched, 4 to 12 luciics long or more, brownish tomentcse ; branches slender A 

 inch long: leaves falcate-secund, twiste.l when <l,y, ovatedanceolate from a broad 

 base, narrowly acuminate, sulcate, the upper auricle Hat and erose-denticulate, the 

 lower decurreut and entire, the stout costa reaching to the apex, arcolation lon<'- 

 hnear, subtlexuous, hexagonal-quadrate at the angles : capsule oblong-cylindrical 

 cernuous and arcuate; annulus broad; operculum acute: ciliohe 3, Ion" —Muse 

 Frond. IV. 08, t. 20 ; Ih-ucli .k Schimp. 1. c, t. 007; IJerkeley, 1. c, t. 10, fig. 5. 

 On the east sitle of Mono Pass (Bohmirr) ; Eutope. 



H. Fn.iciNTM, Linn More slender than the last and less regularly pinnate, the much smaller 

 umer and more .stoutly costate leaves not twisted when dry and the areolation much shorter : 

 ton.entun, more donse : annulus sunple. - Iledw. Spec. t. 76; En^l. Hot. t. 1.570; Bruch & 

 Sclump. 1. c. t 60). ^\ash.ngton lerntory Ul/all) ; Kocky Mountains from British America 

 to Utah and Colorado ; Atlantic States and Eiuope. 



•i- -H- Monoecious. 

 38. H. uncinatum, Iledw. Stem erect or prostrate, remotely pinnate-branched 

 slender, aI)out 2 inches long; branchlets falcate: leaves crowded, yellowish green 

 and glossy, strongly falcate-secund, very long and narrow and subsctaceous from a 

 broad ba.se, distinctly i)licate-striate, serrulate, costate to near the apex ; areolation 

 very narrow, looser at base and more broadly rectangular at the angles ; pericliKtial 

 leaves very long and hair-pointed, erect, striate : capsule oblong-cylindric, cernuous, 

 incurved: ciliola) 2, nearly ecpialling the processes. — lAIusc. Frond, iv. G5 t 25- 

 ]}ruch & Schimp. 1. c, t. GOO; JJerkeley. I. c, t. 11, fig. 1. ' • > 



Fre-iuent in the Sierra Neva.la, and throu-hofit North America from nirtic regions fo Utah. 

 Colorado and the Atlantic States ; also Europe and Asia. 



II. FMiiTANS, Linn. Stems pinnate, erect or lloating, in swamps or stagnant waters, X to 1 

 foot long or more; leaves loosely iml.neated, llaceid and often not fah^ate-secund, lon^^-Ianceolate 

 and acununate nearly entii^, costate to above the middle : annulus none : eilioht often imperfect 

 or united - tedw. Muse. Frond, ly. 94, t. 36 ; Eng. Bot. t. 1448 ; Bruch .^- S,himp. I. c, t. 602. 

 Oregon (IlnU) ; Uinta Mountains (/^<^^so«) ; from Arctic America to the Atlantic States' and in 

 Europe and South America. 



* * Stem more or lesK regularl;/ jihindfc: ffavrs crowd rd nyid /((/cate-seanid in 

 one or two ranks, shortly bicostate or nerue/ess: areolation narrowly linear 

 quadrate at the anyles. — Drei'anmum. ' 



39. H. fertile, Seudt. In soft depressed subcircular l)right green and yellowish 

 tufts, densely pinnately branched : leaves somewhat 2-ranke(|, "narrowly lanceolate 

 and attenuate to a hair-like apex, strongly incurved, .subcircinate when dry, minutely 

 serrulate at the apex, the lower margin rellexed, very obscurely bicostate at base : 

 Howers monojcious : cai)sule oval or oblong, cernuous, subarcuate, brownish above, 

 paler below, with broad annulus and large convex-apiculate operculum. — Bruch &. 

 Schimp. 1. c, t. 591. 



On rocks in the Calaveras (Jrove {Bolandcr) ; Europe. 



40. H. subimponens, Lesq. Stems procumbent, sparingly branched, slender, 

 the branches closely plumose-pinnate : leaves strongly falcatcsecu'nd, ovate- to oblon<'- 



