Phycologia australica; or, A history of Australian sea weeds ..and a synopsis of all known Australian Algae .. . saof Europe. The internal cellular structure is however some-what different, the cortical layer in the present species beingmuch thinner and generally composed of but one or at mosttwo rows of cellules. The ramification is a good deal tendency to ^^o^vs^id finger-like (or rather palmatifid) branchesis sometimes greater than on the specimens here drawn; andspecimens producing conceptacles are often strikingly zigzag,the branch suddenly bending where the conceptacle is seat


Phycologia australica; or, A history of Australian sea weeds ..and a synopsis of all known Australian Algae .. . saof Europe. The internal cellular structure is however some-what different, the cortical layer in the present species beingmuch thinner and generally composed of but one or at mosttwo rows of cellules. The ramification is a good deal tendency to ^^o^vs^id finger-like (or rather palmatifid) branchesis sometimes greater than on the specimens here drawn; andspecimens producing conceptacles are often strikingly zigzag,the branch suddenly bending where the conceptacle is seated. It is not uncommon at Fremantle and Rottnest. The speci-mens from King Georges Sound, above alluded to, are some-what different, and may possibly belong to a distinct present I retain them, undescribed, for further evidence. Fig. 1. Gracilaria dactyloides,—tJie natural size. 2. Portion of a fertilefrond, with conceptacles. 3. Section through branch and conceptacle. 5. Section through branch with fe^ras/iores. 6. A tetraspore:—the latter figures variously magnified. PlcutL.


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Keywords: ., bookauthorharveywi, bookcentury1800, bookdecade1850, bookyear1859