1906] Collins, — New Species in Phycotheca 105 



reprinted ; if the rule for higher plants should be extended to the lower, 

 this article would be the original reference. As far as known, there 

 has been as yet no subsequent publication under another name of any 

 plant here includefl. The description is copied exactly from the label, 

 any connnent or addition that may seem necessary being given in a 

 foot-note; the only change has been in the case of a few of the earlier 

 publications, where varietal and formal names have been changed to 

 conform to the rule of agreeing in gender with the name of the genus. 

 The Arabic numeral preceding a name sufficiently indicates the fascicle, 

 all with such numbers having been issued 50 numbers to a fascicle, 

 from Fasc. I to Fasc. XXVI; a Roman numeral indicates the series 

 in larger size, 25 numbers to a fascicle, Fasc. A to Fasc. D. 



1160. Oscillatoria salinarum, n. sp. Trichomes somewhat flex- 

 uous, sometimes coiled in a regular circle, very torulose; extremity 

 attenuate, slightly curved, obtuse. Articulations nearly or quite as 

 long as broad, diam. .004 mm. or slightly less; calyptra wanting. 

 Ditches of salt works, Salinas Bav, near Guiinica, Porto Rico, June 

 29, 1903. M. A. Howe. 



707. Schizothrix Simmonsiae, n. sp. Forming a brownish tufted 

 coating on various algae, tufts one or two centimeters long, mass 

 showing reddish brown when moistened, pinkish under the micro- 

 scope. Trichomes pale green, .003-.006 nnn., articulations one-third 

 to one-fifth the diameter, much constricted, sometimes irregularly 

 swollen and distorted, as if doubling up in sheath. Sheath delicate 

 but distinct, containing mostly only a single trichome, but often with a 

 .few at the base. Near S. fincton'a (Ag.) Gomont, but differs by the 

 larger diameter of trichome, relatively shorter cells, and fewness of 

 trichomes in sheath. ^Moreover it grows attached to undoubtedly 

 marine algae, while S. tincioria is strictly fresh water. On algae in 

 high rock pool, Easton's Point, Newport, Rhode Island, Dec, 1897. 

 yirs. W . C. Simmon,i. 



1168. C.\LOTHRix CRU.sTA('EA Tliuret forma prolifera (Flah.), n. 

 comb. C. prolifera Flahault in Bornet & Flahault, Revision des Nost. 

 Het., part 1, p. 361, 1886. The l)ranche.s occasionally issue from 

 below a heterocyst, as described for T. prolifera, but much the greater 

 part of the filaments are simple, and agree with C. cruMacea. Among 

 other algae, on boards wet with salt water, Alameda, California, Jan., 

 1904. .V. L. Gardner. 



1263. Spirogyra porticalis (Miill.) Cleve forma minor, n. f. 

 Filaments about .042 mm. diam.; spores seldom over .035 mm. diam. 

 Among other (sterile) Spirogyras, Brookfield, Connecticut, May 8, 

 1892. Imne Hohlen. 



1265. Tetraspora gelatinosa Klitz. forma uniformis, n. f. 

 Forming rounded gelatinous masses, not over 3 cm. diam. Cells 

 quite uniformly .006-.008 mm. diam., not with large and small cells 



