550 Dr. W. H. Harvey's Account of the Marine Botany of 



191- DiCRANEJU ^KS!7/;;m, n. sp. ; fronde unciali subdichotoma v. yage ramosa, apicibus fructiferis 

 strictis; tetrasporis in ramulis immutatis sparsis. Dredged near Emu Point, King George's 

 Sound, on Cunlinia stems. About the size of D. revolutiivi^ but readily known by its straight 

 apices, those bearing tetraspores not swollen. The cystocarps are near the tips of the 

 branchlets (80). 



192. CiLLiBLEPHAKis? PrewiiK, Ag. Garden Island and Fremantle (138). I have not satisfactorily 



ascertained the genus of this plant. 



193. Calliblepharis conspersa-, n. sp. ; fronde stipitata cartilaginea simplici Tel parce dichotomaa 



margine pinnata ; pinnis varie lobatis et fimbriatis nunc multifidis margine dentato-aculeatis 

 ciliatisve; disco aculeisv. 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. 

 19-1. Calliblepharis? pannosa, n. sp. ; fronde stipitata rubro-sanguinea v. purpurascente carti- 

 lagineo-cornea rigida dichotomS ; laciniis linearibus e margine densissinie 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. 

 Sarcocladia, nov. gen. Frons plana, cartilagineo-carnosa, crassa, multifida, duplici strato 

 constituta; stratum interius cribroso-spongiosum e cellulis brevibus anastomosantibus et 

 lacuuis intercellularibus ; e.xterius e cellulis minutis verticaliter seriatis constitutum. 

 Cystocarpia marginalia, elevata, hemisphserica, umbilicata; pericarpium cellulosum, eras- 

 sum ; sporre minutse in fills e placenta centrali radiantibus seriate. Tetrasporce .... Alga 

 livido-rubra, siccitate nigrescens, ramosissima, subdichotoma; margine revoluto. 



195. Sarcocl.\dia obesa, n. sp. ; abundant at King George's Sound and Eottnest (280). 



196. Thtsanocladia oppositifolia, Ag. T. pectinata, Harv. 1 Ner. Austr. Common at Garden 



Island and Rottnest. Sometimes two feet long (165). 



197. Thtsanocladia /(icra, Sond.; fronde livido-purpurea siccitate fusoescente 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. Thtsanocladia costata, n. sp.; fronde plana costa valida percursa distiche decomposito-pin- 



nata 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. Thysanooladia coriacea, Harv. 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. Gracilaria confervoides, Grev. Abundant at Fremantle (166). 



201. Gracilaria dactyloides, Soni. Garden Island and Rottnest, not uncommon (178). My plant 



