Identifier: phycologiaaustra02harv (find matches)
Title: Phycologia australica; or, A history of Australian sea weeds ... and a synopsis of all known Australian Algae ..
Year: 1859 (1850s)
Authors: Harvey, William H. (William Henry), 1811-1866
Subjects: Algae
Publisher: London, L. Reeve
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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so nearly alliedâthis is a character little regarded; for, if at-tended to, it would necessitate the formation of several generaout of the species now grouped under Ptilota. When we cometo figure more of the Australian species of that genus, this factwill be apparent, and would be still more so did our figures ex-tend to all known species. Still, I am not at all disposed tobreak up so natural an assemblage as Ptilota appears to be, bytoo strict an examination into a purely anatomical character.When anatomical characters are accompanied by difference offruit and of habit, they are valuable aids in limiting genera ; butalone, they seem scarcely sufficient. Fig. 1. Dasyphtla Pkeissii,âtlie natural size. 2. Cross section of a branch.3. Longitudinal semi-section. 4. Tips of branches, bearing favellae. 5. Afavella, with involucral ramelli, 6. Spores from the same. 7. A ramelluswith tetraspores. 8. One of its fertile segments removed:âthe latterfigures variously magmfied. Flate^ Zim.
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~\&nce2it ^Tooks, Imp. Ser. Ehodosperme^. ram. Cry^^tonemiace <2 Plate LXVILKOREA HALYMENIOIDES, Harv. Gen. Chaii. Frond fleshy-membranous, piano-compressed, composed ofthree strata of cells; the medullary stratum, of large, empty, thin-walled cells (often ruptured) ; the intermediate, of several rows ofsmaller, coloured, angular cells; the cortical, of vertical, dichotomous,moniliform filaments, set in gelatine. Fructification: 1, favellcewithin a proper external pericarp crowned with spines, and openingby a pore, attached to a basal placenta, invested with cobwebby inter-woven filaments, and containing angular spores; 2, cruciate tetra^spores, dispersed among the filaments of the cortical stratum.âHorea(Harv.), in honour of the Rev.W. S. Hore, an accomplished naturalist. Frons carno&o-memlranacea, plano-compressa, ex strath tribus celhdarum compo-sita ; stratum medidlare cellidis niaximis inanlbus demnm saipe ruptis, interme-dium cellulis pluriseriatis nwiorihus colorat

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