240 
ANSELLIA 
Ansellia Lindl. Orchidaceae (9). 4 sp. trop. Afr. 
Antennaria Gaertn. Compositae (iv). 15 sp. extra-trop., exc. Afr. 
A. dioica Gaertn. (mountain everlasting or cat’s foot) occurs in Brit. 
It is a small creeping dioecious perennial, hairy and semi-xerophytic. 
It is found chiefly on hills and at the sea-shore, but is not common 
in intermediate places (p. 186). In A. alpina (L.) R. Br. only ? 
plants usually occur, and these show true parthenogenesis , the ovum 
developing into an embryo without fertilisation (not to be confused 
with the vegetative budding of Alchornea). 
Anthacanthus Nees. Acanthaceae (iv. b). 6 sp. W. Ind. 
Anthemis Mich, ex Linn. Compositae (vn). 100 sp. Eur., Medit. 
(4 in Brit. — chamomile). The frt. of A. arvensis L. has papillae on 
its upper surface which become sticky when wetted (see Linum). 
Anthephora Schreb. Gramineae (ill). 5 sp. trop. Am., trop. and S. Afr. 
Anthericum Linn. Liliaceae (in). 60 sp. Afr., Eur., Am. 
Anthistiria Linn. f. Gramineae (11). 9 sp. palaeotrop. A . vulgaris 
Hack. (Kangaroo grass) covers large areas in Austr. and S. Afr. 
Anthobolus R. Br. Santalaceae. 5 sp. Austr. Hypogynous. 
Anthocephalus A. Rich. Rubiaceae (1. 6). 3 sp. Malayan. 
Anthocercis Labill. Solanaceae (v). 20 sp. Austr. 
Anthocleista Afzel. Loganiaceae. 5 sp. trop. Afr. 
Antholyza Linn. Iridaceae (ill). 20 sp. Afr. 
Anthospermum Linn. Rubiaceae (11. 17). 25 sp. Afr., Madag. 
Anthostema A. Juss. Euphorbiaceae (A. 11. 8). 3 sp. trop. Afr. The 
firs, are in a cyathium like that of Euphorbia, but the d , reduced as 
in E. to a single sta., has a perianth at the place where in E. 
there is only a joint. (See E.) The ? also has a perianth. 
Anthoxanthum Linn. Gramineae (vn). 4 sp. N. temp, and Ind. ; 
A. odoratum L. (sweet vernal grass) in Brit., common in pastures 
(? valuable). The stems contain large quantities of coumarin, to 
which the smell (so characteristic of newly mown hay) is due; it 
may be easily recognized by chewing a stalk. Fir. with 2 sta. only, 
protogynous. The awns of the fruit are hygroscopic. 
Anthriscus Bernh. Umbelliferae (5). 10 sp. Eur., As., Afr., 2 in 
Brit. ; A. sylvestris Hoffm. (chervil) is a very common weed. 
A. Cerefolium Hoffm. is the cult, chervil of France &c. 
Anthurium Schott. Araceae (1). 300 sp. trop. Am. (see Bot, Jahrb ., 
xxv. p. 352). Most are sympodial herbs, with an accessory bud 
always formed beside the ‘continuation’ bud of the sympodium. 
Axillary shoot often ‘adnate’ to the main one ((/. Solanaceae &c.). 
Aerial roots are frequently formed at the base of the leaves. Some 
sp. live as epiphytes. Firs, g , with perianth, protogynous, and 
visited by insects, arranged in a dense mass upon a spadix, at whose 
base is a flat usually brightly coloured spathe. The fruit is a berry 
and when ripe is forced out of the spadix and hangs by two 
threads formed from the perianth, so that it is easily obtained by 
