236 A MANUAL OF MOSSES 



1. Anacamptodon splachnoides [Froelich] Bridel. 



(Campylodontium hypnoides Schwaegrichen ; Neckera splach- 

 noides Schwaegrichen). 



(Plate XXXIII) 



Dark-green or bluish-green, small, delicate, thinly tufted: 

 stems creeping, with erect bi-anches ; leaves lance-ovate, up to 

 i.5 mm. long, acuminate, entire, plano-concave, chlorophyllose, 

 soft, closely imbricated when dry, non-decurrent, non-plicate; 

 costa rather slender, reaching to above the middle of the leaf; 

 median leaf-cells rhombic-hexagonal, about 3-5:1, with a few 

 quadrate and sub-inflated cells at the base; perichsetial leaves 

 few : seta about 6-1 1 mm. long, sinistrorse when dry ; capsule 

 erect and symmetric, about 2:1, oval-oblong, thick-necked, 

 constricted below the mouth when dry; peristome double, 

 teeth approximately in pairs and reflexed when dry ; 16 in num- 

 ber, lanceolate, pale, articulate, the divisural zigzag ; segments 

 filiform, about one-half to two-thirds as long as teeth; no 

 basal membrane; annulus none; exothecial cells castaneous- 

 incrassate, rectangular or irregularly oblong, above smaller 

 and quadrate, those at the rim minute and rounded; Hd short- 

 rostrate from a conic-convex base, more or less oblique, one- 

 half to two-thirds as long as the urn ; calyptra whitish, covering 

 only the upper part of the urn ; spores about .010 mm., minute- 

 ly papillose, yellowish-green, medium-walled, mature in June. 



In moist cavities in decaying wood, knot-holes in trees, 

 in forks of tree-trunks, etc. ; Europe, Asia, and from New Eng- 

 land to Alabama and Illinois and southwestward to Texas. 

 Collected but seldom in our region, and then only in small 

 quantities. 



Indiana : T. P. James. (Porter's Catalogue). 



McKean : Bradford, different dates, in cavities in de- 



caying wood. D. A. B. (Figured). Is- 

 sued as No. 148. Grout's North American 

 Musci Pleurocarpi. 



Washington : Linn and Simonton. (Porter's Catalogue). 



Family XXX. LESKBACBAE. 



Autoicous or dioicous : slender to robust, mostly stiff, 

 cespitose, bright or dark green, when old brownish, dull or 

 rarely sub-lustrous : stem without central strand, the prim- 

 ary stems mostly erect, simple, pinnate, or variously branched, 

 rhizoids, often stoloniform with distant minute leaves ; second- 

 ary stems mostly erect simple, pinnate, or variously branched, 

 both main and secondary stems stoloniferous ; paraphyllia 

 mostly present ; leaves rarely uniform, usually differentiated 

 into basal and foliate leaves, the latter again into stem-leaves 

 and branch-leaves; basal leaves distant, small, delicate, pale, 



