A INS WOR THIA 2 3 



Aggregatae (Warming). The loth cohort of Sympetalae. 



Aggregate (fruit), many similar fruits from one fl., Anona, Fragaria, 



Illicium, Liriodendron, Magnolia, Phytolacca, Rosaceae, Rubus, 



U'lona. 



Aggregation (Cl.), coming together of plants into groups. 

 Agiabampoa Rose. Compositae (5). i Mex. 

 Agialida O. Kuntze = Balanites Delile (Zygophyll.). 

 Agianthus Greene. Cruciferae (i). 2 N. Am. 

 Agiella Van Tiegh. Zygophyllaceae. 2 trop. Afr. 

 Aglaia Lour. Meliaceae (ill). 100 Indomal., China. 

 Aglaodorum Schott (Aglaoncnia p.p. BH.}. Araceae (v). i Sumatra, 



Borneo. 

 Aglaonema Scliott. Araceae (v). 15 E. Ind. There are several infl. 



forming a sympodium. Fl. monoecious, naked. 

 Aglossorhyncha Schlecht. Orchidaceae (n. 5). 2 New Guinea. 

 Agonandra Miers. Opiliaceae [Olacin. BH.\ i E. trop. Brazil. 

 Agonis Lindl. Myrtaceae (n. i). 13 Austr. (willow-myrtle). 

 Agoseris Raf. = Troximon Nutt. (Compos.). 40 Am. 

 Agrad (Cl.), a cultivated plant ; agrium, a culture formation. 

 Agrestis (Lat.), Agrestal, growing in fields. 

 Agrianthus Mart. Compositae (2). 3 Brazil. 

 Agrimonia Tourn. ex L. Rosaceae (ill. 5). 10 N. temp. A. Eupa- 



toria Linn, and A. odorala Mill, (agrimony) in Brit. The receptacle 



encloses the two achenes in fr., and is covered with hooks. 

 Agrimony, Agriinonia; hemp-, Eupatoriiiin cannabinum L. 

 Agriophyllum Bieb. Chenopodiaceae (A). 5 Centi. Asia. 

 Agronomy, agriculture of field crops and cultivation. 

 Agropyron J. Gaertn. Gramineae (12). 45 temp. A. caninum 



Beauv. (wheat-grass) and A. repens Beauv. (twitch or couch-grass) 



in Brit., the latter a troublesome weed. Its long rhizome roots at 



the nodes, and if broken up each node gives a new plant. 

 Agrostemma L. (Lychnis L. p.p. BH.). Caryophyll. (11. i). 2 Medit. 

 Agrostis L. Gramineae (8). 125 cosmop., chiefly N. temp., 4 in Brit. 



incl. A. alba L., white Bent or fiorin grass (valuable pasture). 

 Agrostistachys Dalz. (incl. Sarcocliinuni Wight). Euphorb. (A. II. 2). 



ii Indomal., trop. Afr. 



Agrostocrinum F. Muell. Liliaceae (inj. i SW. Austr. 

 Agrostology, study of grasses. 



Agrostophyllum Blume. Orchidaceae (n and in). 20 Indomal. 

 Aguacate, avocado, Persea gratissima Gaertn. f. 

 Agyneia L. Euphorbiaceae (A. I. i). 2 Indomal., Masc. 

 Anemia Merrill. Flacourtiaceae (2). i Phil. Is. 

 Ai- camphor, Bhunea bahamifera DC. 



Aichryson Webb, et Berth. =Sempervivum L. p.p. (Crasstil.). 

 Aidia Lour. Inc. sed. i Cochinchina. 

 Ailanthus Desf. Simarubaceae. 8 As., Austr. A. glanditlosa Desf. 



(tree of heaven) in parks. Absciss layers form at base of the leaflets 



as well as of the petiole; the leaflets usually drop first. 

 Aimorra Raf. Compositae (inc. sed.). i N. Am. 

 Ainsliaea DC. Compositae (12). 30 India to Japan. 

 Ainsworthia Boiss. = Tordylium L. p.p. (Umbell.). 



