— 86 — 



CURRENT LITERATURE. 



Reprint from Bulletin of the N. Y. Bot. Gardens, No. 6, May 27, 1901. (Continued.) 



Bryum ventricosuui coinpactn77i (B. & S.) Williams. {B . pseitdotriquetriun 

 conipactum B. & S.) 



Dawson, July 17, in fine fruit. A much smaller plant than the species, 

 in very compact tufts. The leaf-cells and spores seem to be rather smaller 

 also. The median cells measure .008 mm. wide and .016 to .025 mm. long, 

 the spores up to ,014 mm. The dorsal plates of teeth are rather narrow, 

 about I to 3 near base, lamellae 30. Cell walls of the leaves usually seen to 

 be distinctly pitted under a magnification of 300 dia. or more (583). 

 Bryum suborbicitlare Philibert, sp. nov. 



Apparently dioicous, no male flowers found. Tufts up to lYz cm. high. 

 Stems seldom branching. Leaves in 3 or 4 rosettes with innovations start- 

 ing from their bases. Outer perichaetial leaves oblong, somewhat acutely 

 pointed, 2 mm. long, upper stem leaves a little shorter, very broadly ovate, 

 often obtuse, all entire with costa percurrent or mostly so. Borders revo- 

 lute below and of about 3 rows of elongated cells, toward apex becoming 

 flat and cells scarcely elongated. Lower leaves small, obtuse, often nearly 

 as broad as long, with costa vanishing. Inner perichaetial leaves very 

 broadly ovate-lanceolate, small, with costa vanishing. Median leaf-cells 

 rhomboidal to hexagonal, from scarcely elongated to twice longer than 

 broad, up to .025 mm. long. Cell walls not pitted. Capsule with lid up to 

 3 mm. long, broadly obovate, the sporangium gradually narrowing to a very 

 short collum. Lid low-convex, papillate. Seta up to 2^ cm. high. Exo- 

 stome with lower dorsal plates narrow (1-3) and 25-30 lamellae on inner face. 

 Endostome free with basilar membrane extending over »4 up. the segments 

 slender above and widely perforate with mostly 3 long, finely appfendiculate 

 cilia between. Annulusof 3 rows of cells. Exothecal cells about mouth of 

 capsule transversely elongated, in 2 or 3 rows, near middle the cells about 

 twice longer than wide, toward base irregular, sinuous walled, with storaata 

 about .035 mm. long. Spores nearly or quite smooth, up to .016 mm. 

 (Plate 20.) 



This small moss is peculiar in having the broad, mostly obtuse leaves 

 clustered in 3 or 4 rosettes along the stem. It does not seem to be related 

 very closely to any other American species. 



Dawson, growing in swamp with Cinclidiujn and apparently rare. 

 Collected in good fruit. July 2, 1899 (577-) 

 Blagiobryujn argenteoides R. S. Williams sp. nov. 



With the appearance of Bryum argenteum. In dense tufts up to i cm. 

 high. Stem simple or branching, vineous red, radiculose below, in cross sec- 

 tion showing an outer wall of one layer of irregular, somewhat thick-walled 

 cells, with ground tissue of very large, thin-walled cells, becoming smaller 

 toward center and enclosing a distinct central strand. Leaves concave, ap- 

 pressed, broadly ovate, with short abrupt point, entire, mostly ^ mm. long 

 or less or occasionally the terminal leaves lanceolate pointed and up to i 



