94 Howe : Notes ox Bahaman algae 



ondary pinnules are pinnately distichous and corymbose, the low- 

 ermost being as long as the rachis or slightly longer ; the " pedi- 

 cel " supporting the four, five, or more digitate primary branches 

 or " fronds " is very short, measuring in Dr. Coker's specimen 

 only 0.5—1.0 cm. 



vCaulerpa paspaloides (Bory) Grev. 

 Green Cay, in 4 fathoms. 



Rhipocephalus Phoenix (Ell. & Soland.) Kuetz. 



Mangrove Cay, Andros, June 26, 1903. Dr. Coker's speci- 

 mens accord very well with Ellis's original figure * in regard to 

 the outline of the capitulum, but the flabella are broader, more 

 crowded, and more erect. Specimens collected by the writer at 

 Key West, Florida [no. 1612, distributed in Phyc. Bor.-Am. as 

 no. iojo) are extremely varied as regards the form of the capi- 

 tulum, only occasionally offering the oblong-ovoid outline figured 

 by Ellis. The capitula of some of these Key West plants are coni- 

 cal, some are broadest near the top, tapering down to the stalk 

 below, and others are much elongated and of uniform width 

 throughout (sometimes 9-10 cm. x 1 — 1.5 cm.), but these ex- 

 tremes are connected by clearly intermediate forms and we think 

 but one species is represented. 



Udotea conglutinata (Ell. & Soland.) Lamour. 



Collected by Dr. Coker at several points ; at Green Cay in 4 

 fathoms of water. Udotea Flabellum (Ell. & Soland. ),f which is 

 much the more common in southern Florida and Porto Rico, 

 does not appear to have been found by Dr. Coker. 



Microdictyon crassum J. Ag. Anal. Alg. Cont. 1 : 107. 1894. 



Green Cay, in 4 fathoms. We are using provisionally for 

 these plants collected by Dr. Coker the specific name applied by 

 J. Agardh to specimens from the Bahamas sent to him by Mrs. 

 Curtiss, though it is not yet wholly clear how either are to be 

 kept separate from Microdictyon umbilicatum (Velley) Zanard. J. 

 Agardh in proposing M. crassum as a new species appears to have 



*EI1. & Soland. Nat. Hist. Zoopb.//. 25./. 2. 1786. 



f Corallina Flabellum Ell. & Soland. Nat. Hist. Zooph. 124.//. 24. 1 786. 



Udotea Jlabellata Lamour. Hist. Polyp. 311. 1816. 



