340 BULLETIN OF THE UNIVERSITY OF WISCONSIN. 



branched; branches pinnate or bipinnate; paraphyllia multiform: stem 

 leaves triangular-cordate-acuminate, usually with a hyaline filiform point; 

 margins revolute or recurved, at least below; cells oblong-quadrate to 

 oblong-rhomboidal: dioicous; perichaetial bracts loose, flexuous-spreading 

 or reflexed, serrate, rarely with a few short cilia on the innermost, acumen 

 about 3 times as long as the short scarcely costate body: capsule oblong- 

 cylindric, curved horizontal; annulus narrow, indistinct, tardily or imper- 

 fectly deciduous; operculum conic-rostrate, curved; spores 12-16/w, almost 

 smooth, mature in Oct. In swampy places on ground or base of small 

 trees: New Jersey; Pennsylvania. 



444. Tripterocladium rupestre Kindb. Plants intricate, cespitose, 

 pale brownish-green, not glossy: stems irregularly divided; branchlets short, 

 filiform, not creeping: leaves small, densely crowded, when dry appressed, 

 open-erect when moist, scarious, pellucid, not chlorophyllose nor papillose, 

 sub-ovate, acute or long acuminate, upper denticulate above, borders re- 

 curved below, sometimes to middle or above; cells in lower leaves sub-linear 

 above, looser at base, in upper leaves looser, oblong linear, in all sub-quad- 

 rate at borders and base; costa none. Mac. Cat. 187. On the face of a 

 cliff: Yale, B. C. 



44:5. Camptotheciuin lutescens occidentale R. & C. Robust, branches 

 strongly sericeous, capsule narrower, longer. Hednigia 32: 251. 1893. 

 Washington. 



446. Camptotheciiim dolosum Ren. & Card. Sub-species of C. 

 ceneum: branch leaves shorter, broader; nerve sometimes dilated at apex 

 and denticulate; inner perichaetial leaves with apex suddenly truncate, 

 lacerate or deeply incised dentate. Hedwigia 32: 255. 1893. Washington. 



447. Camptotheciuin aureum Sch. Plants smaller and more delicate 

 than in C. lutescens; branches more crowded and shorter; tufts golden 

 yellow: leaves shorter and less deeply plicate; cells of basal angles round- 

 ed-quadrate, forming distinct auricles; paraphyllia quite numerous, ordin- 

 arily oval lanceolate; perichaetial leaves entire: pedicel scabrous; capsule 

 oblong, contracted below mouth; lid conic, obtuse, teeth of peristome 

 orange. Husnot, Muse. Gall. 319. Vancouver Island. 



448. Camptothecium Amesiae Ren. & Card. Widely cespitose, 

 bright yellowish green: stems prostrate, creeping, radiculose, pinnately 

 ramulose; branchlets crowded, short, equal, erect, a little curved: stem 

 leaves broadly triangular, narrowly long acuminate, carinate, plicate, gen- 

 erally plane on one side and revolute on the other, slightly serrulate at 

 apex; costa vanishing in acumen: cells linear, attenuate, upper shorter, 

 alar numerous, quadrate or subrectangular; inner perichaetial leaves 

 ecostate, narrowly lanceolate, long acuminate, entire: seta short, purple, 

 rough, a little twisted to left; capsule narrow, long cylindric, sub-erect, or 

 sub-horizontal and slightly arcuate; lid unknown; teeth orange, long 



