A Grammatical Dictionary of Botanical Latin

tax-, taxi-; -taxis,-is (s.f.III), nom. & acc.pl. -taxes, in Gk. comp. arrangement, order; [> Gk. taxis,-eos (s.f.III) an arranging, as in lines, rows, orders, divisions];

- phyllotaxis,-is (s.f.III), acc. sing., phyllotaxem, abl. sing. phyllotaxe, leaf arrangement; homotaxis, similarity of arrangement; heliotaxis, phototaxis, arrangement in which sunlight is the stimulus.

Diplotaxis (s.f.III) DC. [> Gk. diplous, double and taxis, row, "alluding to the biseriate seeds," (Fernald 1950); Taxiphyllum, a genus of pleurocarpous mosses, from Gk. taxis, + phyllon, a leaf, for the arrangement of leaves in two apparent rows (Crum & Anderson 1981);Taxithelium, a genus of mosses with papillae (Gk. thely-, the teat, nipple, papilla) arranged in a single row over the lumen.

NOTE: "Generic names ending in -anthe (anthE, Gk. flower), -opsis (opsis, appearance) and -taxis (taxis, order) are treated as feminine" (Stearn 1983).