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PERCY SLADEN TRUST EXPEDITION 
EXPLANATION OF PLATES 16-18. 
Puate 16. 
Vig. 3. Gloiophlwa articulata, n.sp. xX &. 
2. Hucheuma Cotton, n. sp. Nat. size. Two forms. 
3. Calliblepharis prolifera, J. Agardh. x 3. 
4. Chylocladia perpusilla, n. sp. x 2. 
5. Fertile portion of a swollen ramulus of Chylocladia perpusilla. x 68. 
6. Laurencia pygmea, 0. sp. ' X 2. 
7. Cladhymenia oblongifolia. x #. 
&. Chondria pumila, Vick. x 3. 
9. Chondria simpliciuscula, n. sp. X 3. 
10. a Pa Top of frond, with regular rows of hexagonal cells. x 80. 
11. Heterosiphonia Rendlei, n. sp. x 3. 
12. Penicillus of Heterosiphonia Rendlet, with stichidia. x 24. 
PLATE 17. 
Fig. 13. Pseudendosiphonia Gardineri, nu. gen. et sp. X 3. 
14. Top of frond of Ps. Gardineri. x 12. st.=stichidia. 
15. Stichidium of Ps. Gardinert. x 100. 
16. Dasyopsis Stanleyi,n.sp. x &. 
17. Dasyopsis aperta, n. sp. x 3. 
18. Dasyopsis Geppii, un. sp. X 3. 
19. if = Underside of thallus, with clusters of antheridia. x 4. 
20. os 3 Antheridium. 
21. Dasyopsis palmatifida, nv. sp. xX 3. 
22. Tapeinodasya Kthele, n. sp. x 3. 
23. e. Part of frond. x 11. 
24. Amphisbetema indica (J. Ag.). Nat. size. 
25. Galaxaura hawatiana, Butt. Nat. size. 
PuaTeE 18. 
Fig. 26. Gloiophiea articulata, u. sp. Section through apex of frond. x 82. 
27. i Peripheral filament, showing small cortical cells. x 340. 
28. Gloioderma? expansa. Nat. size. 
29. 55 a Transverse section, showing large central cells. x 40. 
30. Pseudendosiphonia Gardinert. Section through thallus. x 16. c.=central tube; p.c.=peri- 
central cells. 
31. Oligocladus Prainti, n. sp. x 32. 
32. Dasyopsis aperta, u. sp. Part of penicillus. x 46. m. = mother-cell of downward-growing 
hypha. 
33. Dasyopsis Geppii, nu. sp. Young displaced branch. x 180. 
34. Amphisbetema indica. Apex of frond. X 24. 
35. Peyssonnelia Harveyana. Transverse section. X 128. 
36. Peyssonnelia ? subgen. Ethelia. Section through thallus ; highly magnified. 
37. - Young plant, section through upper part of thallus ; highly magnified. 
