30 ALTHOFFIA 



Althoffla K. Schum. Tiliaceae. 3 New Guinea and Timor. 

 Altingia Nor. Hamamelidaceae. 2 China to Java. A. excelsa Nor., 



rasamala, one of the largest trop. trees. $ fl. reduced to naked sta. 



with basifixed anthers dehisc. lat., so that only by comparison with 



related forms can it be shown that the spike of sta. is really an infl. 



and not a fl. Timber good. 

 Alum-root, Heuchera. 



Alvaradoa Liebm. Simarubaceae. 3 Mex., W.I. 

 Alveolate, honey-combed. 

 Alvesia Welw. Labiatae (vn). i trop. Afr. 



Alvisia Lindl. (Eria p.p. BH. non Hook. f.). Orchid. (11. 15). i Ceylon. 

 Alvordia T. S. Brandegee. Compositae (5). 2 Calif., Mex. 

 Alysicarpus Neck. (Fabricia Scop.). Leguminosae (in. 7). 16 trop. 

 Alyssopsis Boiss. Cruciferae (4). 2 Persia. 

 Alyssum Tourn. ex L. (incl. Berteroa DC., Schivereckia Andrz. BH.). 



Cruciferae (4). 100 Medit., Eur. Cult. perf. fl. 



Alyxia Banks. (Gynopogon Forst.). Apocyn. (1.3). 40 Madag., Indomal. 

 Alzatea Ruiz et Pav. Celastraceae. i Peru. 

 Amaioua Aubl. Rubiaceae (i. 8). 5 Guiana, Brazil. 

 Amalocalyx Pierre. Apocynaceae (II. i). i Cochinchina. 

 Amalophyllon T. S. Brandegee. Scrophulariaceae (in. 3). i Mex. 

 Amanoa Aubl. Euphorbiaceae (A. I. i). 6 trop. Am., Afr., Madag. 

 Amaraboya Linden ex Mast. (Blakea p.p. EP.}. Melastom. (i). 3 Colo. 

 Amaracarpus Blume. Rubiaceae (n. 5). 3 Malay Archip. 

 Amaracus Gled. (Origanum Tourn. p.p. BH.) Labiatae (vi). 13 E. 



Medit. 

 Amaralia Welw. (Sherbournia G. Don, BH.). Rubiaceae (i. 8). 



5 trop. Afr. 

 Amarantaceae (EP., BH.). Dicots. (Archichl. Centrospermae.) 



40 gen., 500 sp. trop. and temp., usu. herbs or shrubs with opp. 



or alt. entire exstip. 1. Fl. in axillary cymes, the whole infl. being 



racemose, $ , rarely unisex., reg. P 4 5 or (4 5), usu. membranous, 



A i 5 opp. P, united below, G (2 3), i-loc., with oo i ov. 



Seed usu. with shiny testa. Embryo curved ; endosp. 

 Classification and chief genera (after Engler) : 



1. Celosieae (ov. > i, anther 4-loc.) : Celosia. 



2. Amaranteae (ov. t; anther 4-loc.): Amaranthus, Aerva, 



Ptilotus. 



3. Gomphreneae (anther 2-loc.) : Gomphrena, Alternanthera, 



Iresine. 



Amarantellus Spegazz. Amarantaceae (2). i Arg. 



Amaranthus L. (incl. Blitum L.). Amarantaceae (2). 45 trop. and 

 temp. Cult. orn. fl. (love-lies-bleeding, prince's feather). Infl. of 

 c fl. A. gangeticus L., &c., are pot herbs in India, &c.; A. cattdatus 

 L., A. paniculatus L., &c., give ed. grain, used as a cereal in trop. As. 



Amarella Gilib., Raf.. Griseb. (Gentiana L. p.p.). Gent. (i). 15 N. Am. 



Amarenus C. Presl-Trifolium L. p.p. (Legum.). 



Amaroria A. Gray. Simarubaceae. i Fiji. 



Amarus (Lat.), bitter. 



Amaryllidaceae (EP., BH. incl. Velloziac.). Monocots. (Liliiflorae). 

 75 g en -> 7 S P- most ly tr P- or sub-trop. Living in dry climates, they 



