546 Dr. "W. II. Harv^ey's Account of the Marine Botany of 



lorum diametro sesqullongioribus. Dredged in 6-7 fathoms in King George's Sound (40). 

 I have seen no fruit, but have little hesitation in referring this fine species to Wrangelia. 

 It seems nearly allied to a plant from Cape Northumberland, distributed by me under the 

 MS. name of Crotmnia insignis, but which is perhaps also a Wrangelia. 



141. Wrangelia velutina, H. Dasya velutina, Sond. 1 Common at Eottnest and Garden Island, 



rare at King George's Sound (108). I have found both the cystocarpic and tetrasporic 

 fruits, which are exactly as in other species of Wrangelia. 



142. 'WRMiGELiA. m>/riopIiyl/oides, n. sp.; fronde rigidiuscula e basi articulata ecorticata inferne 



stuposa pinnatim ramosa; ramis patentibus simplicibus v. iterum pinnatis ad genicula ver- 

 ticillatim ramellosis; ramellis pluries trichotomis segmentis patentibus apice trifurcis 

 acutissimis; fructu . . . Parasitical on the larger i^i(CO«fo, Eottnest (246). A very distinct 

 species. 



143. Wkangelu Kitella, n. sp. ; fronde membranacea flaccida e basi articulata (articulis diametro 



4-6-plo-longioribus) ecorticata decomposite pinnata; ramis ramulisque ssepius oppositis 

 distichis ad genicula verticillatim ramellosis; ramellis dl-tri-chotonui-multifidis segmentis 

 patentibus acutissimis; tetrasporis globosis ad ramellos sessilibus ; cystocarpiis . . . Cast 

 ashore at King George's Sound and Eottnest, rare (213). Very similar in external habit 

 to TT''. Tmiltifida, but much more nearly allied to W. squarrulosa and W. myriophylloides. It 

 is a much smaller and more flaccid plant than the latter, and closely adheres to paper in 

 drying. Many of the branches, on my specimens, end in nearly naked cirrhose prolon- 

 gations, indicating that they come from deep water. 



144. WnAXGELiA Halurus, n. sp. ; rosea, gelatinoso-membranacea (aqua dulci cito deliquescens) ; 



fronde e filo repente orta articulata ecorticata vage ramosa; ramis elongatis simplicibus 

 basi et apice attenuatis ad genicula verticillatim ramellosis; ramellis dichotomo-multifidis 

 patentibus obtusis; articulis ramorura diametro 2-3-plo, ramellorum multiplo-longioribus; 

 cystocarpiis ramulos abbreviates coronantibus. On CauUnia stems at Fremantle and King 

 George's Sound (127). Very similar in aspect to Halurus eguisetifolius, but much softer, 

 of paler colour, and soon decomposing. The cystocarps are those of a Wrangelia. 



14.5. Wrangelia? abietina, d. sp.; fronde cartilaginea crassa elongata (6-10 uncias longa) corti- 

 cata decomposite pinnata; pinnis pinnulisque alternis distichis subhorizontalibus, ultimis 

 subartioulatis tenuiter corticatis, ad genicula verticillatim ramellosis; ramellis dichotomis 

 incurvis obtusis; articulis diametro 3-4-plo-longioribus. Garden Island, rare (270). 

 Possibly a species of Halurus. 



146. Wrangelia? toieWa, n. sp.; pusilla (11 uncialis), ca;spitosa; fronde tenuissima membranacea 

 e basi articulata ecorticata vage ramosa ; ramis subsimplicibus nunc iterum ramosis elon- 

 gatis virgatis per totam longitudinem bipinnatis ; pinnis brevissimis (vix semilineam longis) 

 oppositis V. verticlllatis, pinnulis 2-3-cellularibus obtusis; articulis ramorum diametro 

 4-plo, pinnarum 2-3-plo, pinnularum sesqullongioribus. On the Jetty reef, Eottnest, rare 

 (285). I am doubtful whether to place this species in Wrangelia or CalUthamnion ; but 

 place it provisionally in the former, on account of the tendency to verticlUation in the 

 pinna and ramelU. 



