OF SOUTH AUSTRALIA. 
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GLOSSARY. 
Acrogenous. — Increasing by growth from the extremity. 
Acuminate. — With a tapering point. 
Adnate. — Attached over the whole length; growing together. 
Amorphous. — Having no definite form; of irregular shape. 
Amphora. — A jar with two handles, tapering at the bottom. 
Anastomosis. — Union of one vein, or filament with another, forming a reticulation. 
Ancipitous. — Two-edged ; two-headed. 
Amsogamous. — The sexual cells (gametes) showing a difference between male and 
female. 
Annular. — Ring-like. 
Antheridia. — The male sexual organ of the lower plants, in which sperms are produced, 
incorrectly used in some cases in place of “spermatangia” in the Rhodophyceae. 
Aplanospores. — Non-motile reproductive cells, formed asexually by true cell formation, 
and detached for propagation. 
Appressed. — Lying flat for the whole length of the organ. 
Arachnoid. Covered with, or composed of, long loose hairs, resembling a cobweb. 
Arhoriform. — Tree-like. 
Archeozoic. The era of earliest life, some 1,000 million years ago. 
Arcuate. — Bent like a bow; curved. 
Areolated. — Divided into small spaces or cavities. 
Articulate. — Jointed. 
Auxiliary (cell).— A cell, characteristic of certain orders of the Rhodophyceae, budded 
off from the pericentral cell either before or after fertilization, and bridging 
the carpogonium and fusion cell. 
Axile. — Situated in the axis, or central tissue. 
Bifarious. — Arranged in two row’s; double. 
Bilocular. Divided into two cells or compartments. 
Biseriate. — Arranged in two row’s or series. 
Byssoid — Composed of fine threads; thread-like. 
Caespitose. Growing in tufts; having many stems from one base. 
Calathiform. Cup-shaped, almost hemispherical. 
Calcarate. — Furnished with a spur. 
Calcareous. Chalk-like ; having the substance of chalk. 
Canaliculate. Channelled, with a longitudinal groove. 
Carpogonium,— The female reproductive cell of the Rhodophyceae which contains the 
Carposporangia. Sporangia in the cystocarp, which bear the carpospores. 
Carpospore.—A spherical uninucleate spore arising from the swollen tips of branch fila- 
ments resulting from the fertilization of the carpogonium. 
Cartilaginous. Hard and tough; gristly. 
Caulescent.— Becoming stalked; having a leafy stem. 
Cauliform. — Having the shape of a stalk. 
“Central Filament’’ (type).— When the thallus is built up from a central filament 
which produces lateral filaments; uniaxial. niament, 
C/iromat(^^re.^A collective term for the various coloured plastids, including chromo- 
Chromula. The colouring matter of plants, other than chlorophyll. 
C«,«.- ( l^ ^bratile whip-like processes of protoplasm by which zoospores and similar 
fringe. (2) H ‘ ® processes ’ commonly marginal and forming a 
Ciliate. — Fringed with hairs or cilia. 
Circinnate. — Coiled into a ring, or partially so. 
Clavate. Club-shaped ; thickened towards the apex. 
Coalescent.— Growdng together into one body. 
Collateral. — Standing side by side. 
Concentric. — Having a common centre 
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