489 



(U'luulatc, roujihriR'd l)y the tViiiiiiu'iits of tlic ;^lii>htl_v cadu- 

 cous leaves. Leaves sccuikI nr ci-cet-spi-eadinu, 4-oirini. lon;^-. 

 narrowly sultulate IVoiii a lnoad Uase l-l^mni. loiisr, bccoin- 

 iii.u' tul»ular aliovc with ini'itUcd margins, lia.-al angles not 

 auricled, tilli'd Ity large hyaline cells to the base of the hi'oad, 

 brown vein, those of the l)lade oblong or !-(iuare next the 

 vein, becoming spindle-shaped and [trosenchymatous toward 

 tlie margin, vein thick, excurrent into a dentate slender tip, 

 rough on l)ack. Dio'cious. pericha'tium 5-7nini. long, bracts 

 sheathing half their length, ta])ering to a long, slender, ob- 

 scurely serrate tip, outer shorter, aljruptly subulate, more 

 shari)ly serrate; pe(liceLs recurved. I)uiying the capsules 

 among the leaves, becoming erect when old, o-Nmm. long, 

 stout and twisted in two directions ; ca[)sules pyriform-cylin- 

 dric with a distinct neck, length about 1mm. witiiout the lid 

 which is as long as the rest of the cai)sule. with a straight 

 beak, calyptra cucullate, entire : jKM'istomi- red, conin\ ent, 

 teeth deep set, slender, s])lit to middle, ni- perfoi'ate to base, 

 striolate l)elow, granulose above : annulus mine, mouth bor- 

 dered l>y a dense, dark rim. Maturing in summer, old cap- 

 sules persistent, not sulcate. 



Difi'ers from European specimens of l>. liiiKjiiristrc in the 

 structure of tiie base of the leaf, lacking the suddeidy iuHated 

 basal auricles; ditfering also in the cells above the l)ase, teeth 

 not sjiHt to base, occasionally only perforate. From D. Vir- 

 <lliiirit< it may be distingnishe(l by th(^ less caducous leaves, 

 shorter, stouter, more arcuate jtedicc^ls, smallei- capsules, and 

 longer sheathing ])ericluetium. 



Through the kindness of Dr. Ibibinsoii I have been 

 able to compare these sitecinieiis with those collected by Sul- 

 livant on Grandfather Mt. in 1848. His also are fruiting, 

 and an excellent draAving is [)reserved. hence 1 am able to as- 

 sert that the specimens are almost identical. SuUivant's 

 showing no naked stems, 1)Ut many of the leaves aiv caducous. 

 Dr. Braithwaite kindly compared the W'est Virginia speci- 

 mens Avith C(unp//lopiis piirifornil^ sending me .specimens of 

 this and the variety MullerL and sketches of the l)ases of the 

 leaves. It is evident that SuUivant was mistaken in refer- 

 ring his specimens to ('. flp.ni().-<iis^ as they are more closely 

 allied to Dicranoddiitin m loiKjlroxtrc. var. nljyhiux. 



DICRANUM. Hedw. 



D. fiagellare, Hedw. 



Monongalia: on decayed oak log. 'ril)b's Hun ( l.")*»8.) 

 Fayette: Xuttallburg— L. W. X. 



D. scoparium.fL. ). Ibdw. 



(Jrant: nn grountl in dani[) woods. Bayard. Monon- 

 galia: on ground, the Flats (K)IIS); on decayed log. (ieorge- 



