104 Howe : Phycological studies 



5. A crown of superficial spines from near tte base of the flabelluni, decalcified, 



6. A dichotomy of a flabellum-filament, decalcified, showing the constrictions 

 just above it. (The filaments are somewhat twisted and are viewed a little obliquely, ) 



7. A crown of spines from the stipe-cortex, decalcified. 



All of the figures are drawn from the type material (Bernini Harbor, Bahamas, 

 Howe ^2^/2^^ Figures I and 2 are enlarged 40 diameters ; 3-7, 150 diameters. 



8-I0- Udotea cyathi/ormis 



8-10. Ultimate ramifications of the corticating filaments of the stipe. 



Figure 8 is drawn from no. S547 (Cockburn Harbor, South Caicos, — see Plate 3, 

 Figure i) ; 9, from no. jgyd (Cave Cays, Exuma Chain, Bahamas) ; 10, from 7to, 

 2240b (Bemini Harbor, Bahamas — see Plate 3, Figure 2— filament taken from the 

 lower plant of the tw6 at the left). All the figures are enlarged 150 diameters. 



■II-13. Udotea conglutinata 



11-13. Ultimate ramifications of the corticating filaments of the stipe. 



Figure 11 is drawn from no, 3240a (Bemini Harbor, Bahamas — see Plate 2 

 filament taken from the largest plant there shown) ; 13, from a dried specimen of the 

 same number ; 12, from 5^j>7 (Watling Island, Bahamas — see Plate 2 — filament 

 from the plant with the largest rhizoids). All of the figures are enlarged 150 diam- 

 eters. 



