94 • BOTANICAL GAZETTE. [April, 



broad, thin-walled toward the base, the alar lax, large, 

 quadrate or subhexagonal, brown or yellowish. Fruit un- 



known. 



Miquelon island, 



(Dr. Delam 



Rather resembling in habit the stunted forms of D 

 gatum Schw. and D. tenuinerve Zett., but quite distinct by 

 the form and areolation of the leaves. It has also some affin- 

 ities with D. flagellare Hedw. 



Fissidens incurvus Schw. var. brevtfolius. — Leaves 

 broader and shorter ; border of the vaginant lamina widen- 



ing less at base. 



L 



lots. ) 



Roug 



Trichodon feexifolius. — Loosely cespitose, green. 

 Stems erect, simple, short, 2-5 mm. long. Lower leaves 

 small, lanceolate-subulate, the upper larger, patulous, very 

 flexuous, 3-4 mm. long, .35-.50 mm. broad, from an oblong 

 base gradually narrowed into a long linear-subulate, canalic- 

 ulate, subtubulose point, sinuate at the margins, toothed at 

 apex, and with a broad costa, obscurely excurrent. Cells 01 

 the base rectangular, elongated, 2-4 times longer than broad, 

 the others small, quadrate, very chlorophvllose, with trans- 

 verse walls slightly prominent. Pericluetial bracts similar to 

 the leaves, but dilated and subsheathing at base ; archego- 

 nia 2-4. Male flowers on the same plant below the female, 

 small, gemmiform ; perigonial bracts 4-5, the external broad! v 

 ovate, suddenly narrowed, cuspidate, the inner broadly and 

 obtusely acuminate, obsoletely costate ; antheridia 3— 5 T sub- 

 sessile, elongated, with some paraphvses. Fruit unknown. 



PI, • - 



1887). 



(& 



It is only by the examination of the fruit that we can be 

 certain about the generic position of this species ; however, 

 by its vegetative system, it seems closely allied to T. cylindri- 

 cus Sch., from which it differs in the monoecious inflores- 

 cence, the gradually narrowed leaves, and the shorter cell- 

 of the areolation. 



Physcomitrium pyrifi 



Char- 



actenzed by the longer-acuminate leaves, the generally lon- 

 ger pedicel (15-20 mm.) and the asymmetrical calyptra, 2-5 

 lobate at base, but entirely cleft on one side. 



