I III. \!.< Bl I'M! DA. 19 



is. C. frascatii sp. aov.; P. B.-A., No. 2164. Humilh 

 cm. aha; ramificatione irregulari, inferne plerumque dichotoma, 

 dichotomiis patentibus; superne partim conformi, sed etiam laterali, 

 patente, saepe rectangulari; ramulis ultimis 1 3-cellularibus, prope 

 vel omnino rectangularibus, saepe secundis latere exteriore rami 

 recurvati; cellulis inferne 70-100 ju diam., 2-5 diam. !■ lin- 



dricis; ramulorum 60 80 /i diam., 2 3 diam. longis, (eviter inn; 

 nodis constrictis; cellula terminali obtusa. 



Low, L-2 cm. high, branching irregular, below mostly dichotomous, 

 with wide forkings; above partly similar, partly lateral, patent, often 

 at a right angle; ultimate ramuli 1 -3-celled, nearly or quite at right 

 angles, often secund on the outer side of a recurved branch. Cells 

 below 70-100 ju diam., 2-5 diam. long, cylindrical; in the ramuli 

 G0-S0 ii diam.. 2-3 diam. long, somewhat swollen with constri< 

 do les; terminal cell obtuse. In matted tufts in tide pools Dear 

 Prascati Hotel, Jan. 11, 1914, A. B. Hervey. Type in Collin- herb. 



Growing in similar places to C. repens, and forming similar m 

 tufts, but distinct by the smaller dimensions and the lateral, secund, 

 submoniliform ramuli. 



*19. C. fracta (Fl. Dan.) Kutzing, 1843, p. 263; 1854, p. 10, 

 PI. L; Collins. 1909, p. 353; P. B.-A., Xo. 2013. Conferva fracta 

 Flora Danica, Vol. V., PI. DCCCCXLVT, 1782. Artificial Reservoir 

 of fresh water near Spanish Rock, Dec, Hervey. Some of the 

 material is in a vigorously growing state; some in a hibernating state, 

 cells with thick walls, dense contents, few 1 tranches. 



( ladophoropsis Borgesen. 



C. membranacea (Ag.) Borgesen, L905, p. 288, figs. 8-13; 1913, 

 p. 47, fig. 33; Collins, 1909, p. 362; P. B.-A., No. 1866; ( 

 membranacea Agardh, 1S24, p. 120. North Shore, Jan., Tuck 

 Town, March, Harris Bay, Shelly Bay, April. Hervey; Inlet, May, 

 Hungry Bay, July, ( 'ollins. A very common species, forming cushions 

 on rocks, and on and under mangroves; in still pools it is sometimes 

 also in floating ma* 



Pithopiiora Witt rock. 



*P. kewensis Wittrock. L877, p. 52, PI. I. fig. 8; PL II. figs. 1-12; 

 PL III, figs. 1-9; PL IV. figs. 2 11; PL V, figs. 9 L0; Collins, 1912, 

 p. 98; P. B.-A., No. 2072. With Rhizoclonium etc. in reservoir of 



fresh water near Spanish Rock, Dec. Hervey. 



