280 
Fig. 16. 
Figs, 17-24. 
Fig. 25. 
Fig. 26. 
FRESHWATER ALGHX FROM THE WEST INDIES. 
Prate XIV. (continued). 
Cerasterias stawrastroides, n. sp. 520/1. 
Rhizoclonium Berggrenianum, Hauck, var. dominicense, n. var. 
5207/1. 
Cosmarium pseudopyramidatum, Lund, * stenonotum, Nordst., 
f. minor, Racib. 520/1. 
Gleothece linearis, Naeg., forma. 520/1. 
PuatEe XV. 
Figs. 1-3. Hapalosiphon arboreus, nu. sp. 520/1. 
4-8. Stigonema hormoides, Bornet et Flah., var. tenve, n. var. 520/1. 
h, heterocysts. 
9-10. Aphanocapsa elachista, n. sp. 520/1. 
11-15, Scytonema ambiguum, Kuetz. 520/1. 
16-28. Hapalosiphon intricatus, n. sp. 520/1. 
Figs. 1-7. 
Fig. 8 
9 
10. 
Figs. 11-13. 
14-16. 
Fig. 17. 
18. 
19. 
Prats XVI. 
Symploca cuspidata,n.sp. Fig.1, natural size ; fig. 2, a very small 
portion of one of the erect fasciculi, 120/1; fig. 3, a specimen 
showing three trichomes in one sheath, 120/1 ; figs. 4 & 5, exampies 
with two trichomes in one sheath, 520/1 ; figs. 6 & 7, the apices of 
two filaments, showing in fig. 6a broad sheath at the apex, and in 
fig. 7 a narrow one, 520/1. 
. Tetrapedia trigona, n, sp. 8380/1. 
. Gleothece lunatum, n. sp. 520/1. 
Eudorina stagnale, Wolle, var. 520/1. 
Gleocapsa gigas, n. sp. 520,1. Fig. 11, an example having the 
cells with finely granulate walls; fig. 12, one where the lamellx 
round the cells are not visible. 
Scytonema amplum, n. sp. 520/1. 
Chroococeus minor, Naeg. 520/1. 
» » » f. minima, 520/1. 
” schizodermaticus, West. 520/1. 
