550 
Dr. \Y. II. Harvey’s Account of the Marine Botany of 
191. DiCEANEMA2?M«7fem, H. sp. ; fronde unciali subdichotoma v. vage ramosa, apicibus fructiferis 
strictis ; tetrasporis in ramulis immutatis sparsis. Dredged near Emu Point, King George’s 
Sound, on Caulinia stems. About the size of D. revolutum, but readily known by its straight 
apices, those bearing tetraspores not swollen. The cystocarps are near the tips of the 
branchlets (80). 
192. Calliblepuaris? Ag. Garden Island and Fremantle (138). I have not satisfactorily 
ascertained the genus of this plant. 
1 93 . Calliblephaeis conspersa^ n. sp. ; fronde stipitata cartilaginea simplici vel parce dichotoma a 
margine pinnata ; pinnis varie lobatis et fimbriatis nunc multifidis margine dentato-aculeatis 
ciliatisve; disco aculeis v. lobulis ramosis consperso; coccidiis per totam laminam sparsis. 
Garden Island (132). Like C. ciliata in habit, and very variable in form, and readily 
known by its scattered cystocarps. 
194. Calliblepiiaeis? pannosa, n. sp. ; fronde stipitata rubro-sanguinea v. purpurascente carti- 
lagineo-cornea rigida dichotoma ; laciniis linearibus e margine densissime pinnato-fimbri- 
atis; pinnis angustissimis patentibus simplicibus v. pinnatim compositis vage dentatis v. 
ciliatis; coccidiis Abundant on rocks near low- water mark, Middleton Bay, King 
George’s Sound, and at Rottnest, cast ashore (98). I have seen no fruit, but the habit and 
structure agree with those of Calliblepharis. 
Saecocladia, nov. gen. Frons plana, cartilagineo-carnosa, crassa, multifida, duplici strato 
const! tuta; stratum in terius cribroso-sponglosum e cellulis. brevibus anastomosantibus et 
lacunis intercellularibus ; exterius e cellulis minutis verticaliter seriatis constitutum, 
Cysiocarpia marginalia, elevata, hemisphserica, umbilicata; pericarpium cellulosum, cras- 
sum; spora; minutas in filis e placenta central! radiantibus seriata3. Tetrasporce .... Alga 
livido-rubra, siccitate nigrescens, ramosissima, subdichotoma; margine revoluto. 
195. Saecocladia ohesa, n. sp. ; abundant at King George’s Sound and Eottnest (280). 
196. Thysanocladia oppositifolia, Ag. T. pectinata, Harv. ! Ner. Austr. Common at Garden 
Island and Rottnest. Sometimes two feet long (165). 
197. Thysanocladia tea, Sond. ; fronde livido-purpurea siccitate fuscescente plana, inferne medio- 
incrassata v. subcostata, superne ecostata, distiche decomposito-pinnata ; pinnis lato-lineari- 
bus approximatis patentibus suboppositis; pinnulis erectiusculis lato-linearibus planis basi 
angustatis simplicibus vel trifurcis; axillis pinnularum eximie rotundatis; soris tetra- 
sporarum in apicibus dilatatis immersis. Rottnest, rather rare (237). Livid purple, with 
a slight bloom when fresh. Very distinct from T. oppositifolia. 
198. Thysanocladia costata, n. sp. ; fronde plana costa valida percursa distiche decomposito-pin- 
uata ambitu ovata ; pinnis patentibus approximatis suboppositis costatis ; pinnulis argute 
serratis subcostatis; coccidiis . . . Rottnest (260). A very handsome plant, 12-14 inches 
high, readily known by its strong midrib. 
199. Thysanocladia coriacea, Ilarv. Ner. Austr., t. 36. Rottnest and Garden Island, common 
(105). The cystocarps are crowded near the ends of the ramuli exactly as in T, dorsifera. 
200. Geacilaeia confervoides, Grev. Abundant at Fremantle (166). 
201. Geacilaeia dactyfotes, Sond. Garden Island and Rottnest, not uncommon (178). My plant 
