the Colony of Western Australia. 537 



Series II.— RHODOSPERME^. 

 Order I.— RHODOMELACE.E. 



43. Claudea eJeyans, Ag. Fremantle, very rare, June, Geo. Clifton, Esq. (276). 



44. Maktensia elegans, Her. M. Brunonis, Harv. MS. Garden Island and Rottnest, rare. May 



and June. My specimens seem identical with the South African ones (170). 



45. Maetensia denticulata, n. sp. ; frondibus sessilibus cjcspitosis tenui-membranaceis repetite di- 



chotomis, laciniis cuneatis ultimis non raro flabelliformibus ; margine crispato denticulato; 

 fenestro apice ciliato v. lobato, lobulis demum elongatis fenestratisque. Species valde vari- 

 abilis. Garden Island and Rottnest, on reefs near low- water mark, June (171). 



46. Martensia Australis, n. sp. ; stipite cartilagineo brevi in frondem multilobatam merabranaceam 



basi incrassatam desinente, margine hie illic minutissime denticulato ; fenestro apice angustis- 

 sime marginato denticulato. King George's Sound, rare, February (88). 



47. Thuretia quercifoUa, Dne. King George's Sound and Garden Island (6.5). 



48. Sakcomenia delesserioides, Sond. Garden Island and Fremantle (130). Three varieties occur 



together, viz. : a. latifolia, phyllodiis lato-lanceolatis ; /3. lancifolia, phyllodiis lineari-lanceo- 

 latis; 7. cirrhosa, phyllodiis angustissimis, supremis sispius cirrhiferis. The plant described 

 by me in Ner. Austr. as S. delesserioides is a Delesseria, namely, D. corifolia, H. I have now 

 gathered Sender's plant in abundance. 



49. Sarcomenia hypneoides, n. sp. ; fronde lineari angustissima compressa distiche ramosissima, 



ramis ramulisqne oppositis attenuatis acutis basi nee angustatis; stichidiis lanceolatis spar- 

 sis V. fasciculatis. Garden Island and Fremantle. Certainly a congener with the preceding, 

 to which it bears precisely the same relation that Desmarestia viridis does to D. ligidata. 

 Both this and the preceding species are gray and iridescent when living, but turn a bril- 

 liant rosy red after a few minutes' exposure to the air, and this colour is preserved in drying 

 (276). 



50. LiEnoRUAifDJ A spectabilis, Soni. Garden Island, abundant; rare at Rottnest (113). L.laiifolia. 



Harv. Ner. Austr. is only a broad-leaved variety. This plant varies extremely in size. 



51. jEANNERETTiAyronrfoia, n. sp. ; caule dichotomo cartilagineo alato v. denudato ; phyllodiis cune- 



atis dichotomis crispatis, costa infra medium laminae evanescente; fasciculis stichidiorum 

 sparsis. Garden Island, rare (112). This plant is intermediate in character between iTeaji- 

 nerettia and Pollexfenia. 



52. Pollexfenia pedicellata, Harv. Ner. Austr., t. 5. King George's Sound, Garden Island, and 



Rottnest, common (33). /3. nmltipartita; fronde angustiore, regulariter dichotoma (100). 

 P. nmltipartita, Harv. in Herb. T. 0. D. Having collected both these forms in abundance, 

 I am forced to unite them under one specific name. 



53. PoLYPHACCM proli/erum, Ag. King George's Sound and Fremantle (89). 



54. Thamnoclgniuii ^iro^i/irwrn, Sond. King George's Sound, cast ashore (318). 



55. THAjiNocLONiUM/oieWi/brmc, Sond. Fremantle, in fragments only (319). 



