260 



XLII.-NEW OR LITTLE-KNOWN MARINE ALGAE 



FROM THE EAST. 



(With Plate.) 



A. D. Cotton. 



Amongst the marine Algae named in the Herbarium specimens 

 of rarity and interest are frequently noted of which a permanent 

 record is desirable. 



In the present communication, which concerns only plants 

 occurring east of India, descriptions are given of two new species, 

 together with notes on some of the rare or critical species lately 

 observed. Some of these specimens have been newly added, 

 others have been in the Herbarium for many years. In the case 

 of those examined from the Herbarium of Mr. E. M. Holmes, 

 duplicate specimens or portions of specimens, have been kindly 

 presented by him to Kew. 



Endarachne Binghamiae, J. Ag. ; Anal. Alg., Cont, iii., p. 27, 

 rV • g A, °^'» A1 2- Ja P- Exsicc - No. 86; Phyllitis Fascia. 



Kate, in Okam. Illustr. Mar. Alg. Jap., vol. I, tab. 10. 



iI5? K s 5 n , ns Endarachne, with one species E. Binghamiae, was 

 escribed by J. Agardh in 1896 from California. Since then it 



ntw 11 recorded froni J apan (Okamura), and in the Kew 

 Herbarium a specimen exists from Hong Kong (Hong Kong 



extZ, a n? rden ' N + °- i 94) ' It8 "Stable Semblance" £ 

 fo 2 li^ ara n e t0 PhyUitis Fa8cia > Ktt ^., doubtless accounts 

 struc ur. T^^ tl *iT C ? nt1 ^ entlrely °™*>oked. In vegetative 

 beini mrH v «r r *? * W0 l pedeS are ver y distinct , Endarachne 

 fur her^ ffL en i° US ', Whil8t Ph ^ mis is entirel V cellular ; a 



belno g±n« ?£ " found * the e P id ermal cells of the former 

 oeing smaller than those of the latter. 



wn^L di S/L° f - the gen f : Mutarachne- mzk<* it doubtful 

 HemisiLrZ t !i i 1S as ,^ del y distributed in the Northern 

 tho^ht to L - S b6en l ithert0 8u PPosed. Though previously 

 oturrence therpT °i? m EaSt6m Asia We ma ^ no ^ ^ estion »■ 

 oTBTSMu^um Herba?ir Clinen8 - haVe been f °^ in the KeW 



No H Sf^f±b ° k T V Syn - List > P' 10 ' ^- ^P. Kxsicc 



ixxit'p. m%T™Cl ' Holmes ; Journ - Linn Soc -' vo 



•t 



vol. 



llected by Wright 



H. 



Recognised as a distinct 

 H. undulata differs from H. 



podioides Act irT+i, \ , 7 ^ unaul( ttci differs from #. jyo///- 



frille 1 iLini' wh£ h 8 °k ^^ 8 ' Upo3e rachis > and the de ° 8e1 ^ 

 Plant is Xo a W 1S b ackl8h 0live and of ti ™ texture. The 



known to attain «' !"*, much lnore robust > though it is now 

 own to attain a greater length than that mentioned by Holmes. 



Scmaia complanata, Cotton, sp. nov. 



furcellata, Biv., forma 

 Amer., No. 836. 



