oor 
Yendo: CORALLINZ VER. 715 
normally subcompressed obovate but sometimes globular or 
linear. The conceptacles are slightly bulged out, two to several, 
mostly immersed in the shaded side of a cordate articulus. 
Geniculi linezeform. 
A branch is often simple with homogeneous cylindrical ar- 
ticuli. Plants with lots of this sort of branch are likely to be 
confounded with Amp. cretacea Endl. or the preceding forma. 
But the occurrence of the cordate articuli is the character upon 
which to separate the present species. Amp. epiphlegnoides 
seems to me quite similar to this plant. I mention it here as a 
synonym, however, with doubt, as I have not seen any authentic 
specimen of Agardh’s plant. 
Common: 2-5 ft. below low water mark, not seldom found, 
several fathoms deep. 
3. Cheilosporum californicum (Dcne.). Pl. LIV., Fig. 2; Pl. 
Vie; Pig. 3: 
Frond 3-5 cm. alta, stipitata, irregulariter di-trichotome ra- 
mosa: articulis stipitis cylindraceis diametro sesqui- 2- plo 
longioribus sursum latioribus et compressis ; ramorum approxi- 
matis, adpressis mediis costatis, obreniformibus vel sagittatis 
lobis rotundis, longitudine inter genicula distantiam loborum 
4-plo brevioribus ; apicalium obovatis compressis : conceptaculis 
hemisphericalibus binis vel quatuor in utraque facie articuli 
instructis. 
Amphiroa californica Dene., Class f. d. Alg. et Cov., p. 112. 
Putz; spec. Als. 'p.' 70x. 
mrescn: ini}, Ag.opec: Ales; Tiki 'p. 542. 
Harv: Ner. Bor. Americ, p. 86. 
As the original description of this plant was given somewhat 
briefly, a few other species have been mistakenly identified with 
it; and Areschoug counted it under the ‘species inquirendae” 
(7. c.). We have a specimen of Amp. californica Dene., col- 
lected at Oregon and determined by Dr. Farlow. Our plant is 
exactly similar to this specimen and at once accords very well 
with Decaisne’s description. 
Not rare: low-water mark, also in tide pools. 
4. Cheilosporum frondescens (Post. et Rupr.), f. typica. PI. 
mM Pipe? ; Pil. LVI., Figs:'4,°5 and’ s. 
Corallina frondescens Post. et Rupr., Ill. p. 20, t. XL., f. 103. 
