104 Howe : Phycological studies 



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



6. A dichotomv of a flabellurn-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 ( Bemini Harbor, Bahamas, 

 Hmve J2y2). Figures l and 2 are enlarged 40 diameters ; 3-7, 150 diameters. 



8-10. UJotea cyathiformis 

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

 Figure 8 is drawn from no. 55^7 (Cockburn Harbor, South Caicos, — see Plate 3, 

 Figure I ) ; 9, from no. ^g-jb (Cave Cays, Exuma Chain, Bahamas) ; 10, from no. 

 324.0b ( Kemini 1 1 arbor, Bahamas — see Plate 3, Figure 2 — filament taken from the 

 lower plant of the two 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 1 1 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 §23^ (Watling Island, Bahamas — see Plate 2 — filament 

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

 eters. 



