— 88 — . 



Resembling the smallest forms of Barbula ungiiiculata Hedw. by the 

 shape and the areolation of the leaves, but well distinct by the peristome 

 much shorter and less twisted, tne teeth describing scarcely half a spiral 

 turn, 



Ulota crispula Brid. var. dolosa R. and C. 



Distinct from the genuine form by the dark green tint, the leaves less 

 crispate and generally broader and the areolation less incrassate, the lower 

 cells looser, shorter, hyaline or greenish, not yellow. 



District of Columbia: Tenallytown, mixed with Orthotrtchum Ohioense 

 and O. Braunii {J. M. Holzinger, 1892). 



This variety differs considerabl}^ from the type by its much looser basi- 

 lar areolation, and would be easily taken for a well distinct species; but we 

 have specimens, gathered at Atco, New Jersey, by Mr. H. A. Green, which 

 are intermediate between this variety and the typical form, 

 Philonotis venella C. Muel. var. Coloradense R. and C. 



Areolation more chlorophyllose ; marginal cells narrower, teeth of the 

 leaves more patulous. Sterile. Perhaps a small depauperate form of P. 

 Muehlenbergii '^xx^.l 



Colorado: Springdale, Boulder Co. {Marie Holzinger, 1892, comm. J. 

 M. Holzinger). 



Anomobryum filiforme Husn. var. Americanum R. and C. 



Differs from the var. concinnatian {Bryuin concin7iatum Spr.) by the 

 more slender and shorter stems, the smaller leaves and the shorter cells. 

 Costa percurrent or vanishing just below the point. Sterile. 



Wisconsin: Trempealeau Mt. {F. M. Holzinger, 1893). 



With Rev. Boulay, we consider Anomobryum filiforme (Dicks.) Husn., 

 A . juliforme Solms., A. sericeum, DeLacroix, and A. concinnatum, (Spr.) 

 Husn., as belonging to the same specific type, which is widely distributed 

 under numerous local or regional forms, throughout Europe, Africa, North, 

 Central, and South America. 



Hypnum implexum R. and C. 



Tufts depressed, light green. Stems intricate, pinnately ramulose, 

 branchlets hooked, fastigiate above. Leaves falcate-secund. from a broadly 

 ovate-deltoid base rather suddenly constricted into a narrow subulate acu- 

 men, plane on the margins, quite entire or subdenticulate at base of the 

 acumen; costa double, short: cells narrowly linear, those of the angles few 

 but distinct, small, quadrate, greenish or pellucid. Flowers and fruit 

 unknown. 



Labrador: Seal Island {Rev. A. C. Wag home, 1893). 



Allied to H . ha?nulosum Sch., but more robust, and distinct by the light 

 green tint; the leaves broader at base and more suddenly constricted into a 

 subulate acumen, and the alar cells more numerous and more conspicuous. 

 Much resembling the small green form of H. cupressiforme L., but in this 

 the leaves are narrower and the alar cells still much more numerous and 

 conspicuous. 



