Illustrated Handbook of Succulent Plants: Aizoaceae A-E
Urs Eggli
Language: English
Pages: 345
ISBN: 2:00333343
Format: PDF / Kindle (mobi) / ePub
This first complete treatment of the leaf-succulent family Aizoaceae includes an inventory of 136 accepted genera of the 234 described ones and of all species ever placed in the family. Almost 800 colour photographs illustrate mainly rarely shown species.
genera are arranged alphabetically, the name being followed by the name of the subfamily into which the genus is placed. All valid and accepted names are printed in bold, synonyms in italics. For each treatment, the contributor(s) is (are) given. The basic scheme for the treatment of an accepted taxon is as follows: • nomenclatural part including the name of the taxon with author and bibliographical reference(s), its synonym(s) and types with full references, etymology (only for genera) •
leaf-pair which is connate < 40%, but leaf lengths almost equal (6-10 mm), keels with a line of long papillae, otherwise epapillate and flat; Fr decumbent with long pedicels, bracteoles adnate at 1/4 of length, reaching the bowl-shaped base of the capsule, top conical or with a central turret, awns basally broadened, covering membranes with bulges or humps, locules c. 10, length < 50 mm, 0 < 14 mm; S smooth, micropyle appressed, pointing down, c. 0.75 mm I, 0.4-0.5 mm b, 0.35-0.4 mm t; Eco10n
deciduous; L linear, cylindrical to semicylindrical; FI petals yellow; Fr breaking off the stalk at a preformed place; Ecol in sand at higher altitudes > 200 m; Distr as for subgenus. Note: Species have been distinguished based on differences in root shape, calyx lobes, flower diameter, shape of petals, shape of the top of the ovary, and ribs on the calyx. Natural populations show wide ranges over these character expressions, some of them even exhibiting the entire range. It is therefore
formally: "microphyllum Yorkshire" and "microphyllum Kensington" (1795: 417). In the texts, he mentioned several other species to which the two may be similar or not. In this way, and by using both names beside each other, he indicated that he did not (yet) accept the name for anyone species. For his extensive description cited above (1803: 73), Haworth obviously had good living material, and the drawing made a little later by Duncanson of that species is considered to represent the type specimen
spreading branches develop, these bearing short shoots with several leaf-pairs at first, developing long I later so that the lateral, almost erect branches are annulated basally; L basally connate, triquetrous, acuminate and mucronate, distally recurving, 10-11 mm 1, 4-5 mm band t, epidermis with long papillae; FI1-3, c. 40 petals in 5 groups, c. as long as the 5 K lobes; Fr 1-3 on short shoots, valves with short expanding keels basally separated and distally tapering into very short awns,