12 CHROOCOCCACEAE 
On Gymnogongrus furcellatus, Callao, December 27, 1906, 
Coker 17 p.p.; on the same, Chincha Islands, June 18, 1907, 
Coker 193 p.p.; on the lamina of Lessonia nigrescens, Pescadores 
Islands, region of Ancén, February 12, 1907, Coker 00150 p.p. 
(FIGURE 1); also, in minute scattered colonies, on Chaetomor pha 
and Cladophora, Chincha Islands, June 18, 1907, Coker 106 p.p. 
The original Palmella (?) tuberculosa was described from the 
Adriatic Sea, where it is said to form colonies hardly т mm. broad 
on species of Gelidium, Ceramium, Polysiphonia, Cladophoya, etc. 
Later, it was described by Wille under a new generic name as 
occurring in southern Norway on the stipes of La- 
minaria digitata and on Rhodochorton Rothii.* 
We have not been able to obtain authentic ma- 
terial of Palmella (2) tuberculosa Hansgirg, but, 
: through the courtesy of Professor Wille, we have 
УУ seen his Chlorogloea tuberculosa on stipes of Lami- 
ди: папа. Іп the Peruvian specimens оп Chaetomor- 
pha, Cladophora, and Gymnogongrus, the colonies 
culosa (Напѕв.) ге rarely as much as 1 mm.,broad; they are often 
Wille. A widely 150 и broad or less, are 30-125 u high, and are 
commonly intermingled with other epiphytes. But 
зун uon. OB the Lessonia it seems sometimes, at least, to 
dores Islands, have uninterrupted opportunity for extension and 
| "^; here some such specific name as expansa would be 
pie dign more apt than tuberculosa. On the Lessonia it 
otis forms a compact, obscure, closely adherent, plane, 
submembranaceous stratum 20-50 и thick and of 
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FIGURE 1. 
* More recently, Setchell and Gardner (Univ. California Publ. Bot. 1: 182. 
1903) 
have, 
with some doubt, identified with these plants the epiphyte on Cladophora from 
British Columbia distributed by Tilden as Pringsheimia scutata f. Cladophorae 
of about 20 cells, while in Miss 
Tilden's plant, as we have seen it, the cells are mostly unistratose; the cells average 
considerably larger than the 1-1.5и of Hansgirg's description and, as intimated by 
Setchell and Gardner, ther == іп ей still lar т ~ 
of being conidangia. Like Setchell and Gardn 
heimia in Am. Alg. 3 
Cladophorae, n. f.” 
ou Par 
er, we find nothing resembling Prings- 
82, but we suspect that the name " Pringsheimia scutata f. 
was intended to apply to some species of Dermocarpa. 
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