DEWEYA 211 



But if all the species in a genus are known, it is obvious that for 

 purposes of description to enable identification, such a description 

 is much too long, and the skill of the describer will be shown in 

 describing those characters only in full (or as fully as necessary) 

 which are essential to the discrimination of the species among its 

 congeners. 



Descurainia Webb et Berth. (Sisymbrium p.p. BH.) Cruciferae (4). 

 1 8 N. temp., S. Am. 



Desdemona Sp. Moore. Scrophulariaceae (inc. seel.), i Brazil. 



Desfontainia Ruiz et Pav. Loganiaceae. 2 Andes. Ovary 5-loc. 



Desmanthodium Benth. Compositae (5). 4 Mexico, C. Am. 



Desmanthus VVilld. Leguminosae (i. 3). 15 Am., Madagascar. 



Desmiograstis Borner. Cyperaceae (in), i N. temp. 



Desmochaeta DC. = Pupalia Juss. (Amarant.). 



Desraodium Desv. Leguminosae (in. 7). 170 trop. and subtrop. In 

 D. gyrans DC. (telegraph plant), during the day, if the temperature 

 be not below 72 F. the two small lat. leaflets of each 1. move steadily 

 round in elliptical orbits. See Darwin's Movements of Plants. At 

 night the leaves sleep, drooping downwards. Several are useful as 

 fodder, and are cult. 



Desmogyne King et Prain. Ericaceae (in. r). i India. 



Desmoncus Mart. Palmae (iv. 2). 25 trop. Am., climbing palms 

 with reedy stems, and hooks like Calamus. 



Desmonema Miers. Menispermaceae. 6 warm Afr. 



Desmoscelis Naud. Melastomaceae (i). 2 trop. S. Am. 



Desmostachya Stapf. Gramineae (10). r trop. As. and Afr. 



Desmostachys Planch. Icacinaceae. 3 Madagascar, trop. Afr. 



Desmothamnus Small (Andromeda p.p.). Eric. (n. i). i Florida. 



Desmotrichum Blume (Dendrobium p.p. ). Orch. (11. 15). 27 Malaya. 



Despeleza Nieuwland (Lespedcza p.p.). Legum. (in. 7). 4 U.S. 



Desplatzia Bocq. Tiliaceae. i W. trop. Afr. 



Desvauxia R. Br. Centrolepis Labill. (Centrolep.). 



Detandra Miers (Sychnoscpalum Eichl. ). Menisp. 4 trop. S. Am. 



Detarium J uss. Legumin. (n. 2). 4 trop. Air. Pith of pod ed. 



Determinate, derinite, ending with a bud. 



Dethawia Endl. (Seseli p.p. BH.}. Umbellif. (in. 5). i Pyrenees. 



Detris Adans. = Felicia Cass. (Comp.). 



Deuterocohnia Mez. (Dyckia). Bromeliaceae (2). 3 S. Am. 



Deutzia Thunb. Saxifragaceae (ill). 20 N. temp, and trop. Ovary 

 inf. 3 4-loc. The fruit splits septicidally into its cpls. which open 

 each at its apex. The seed is provided with a winged testa, very 

 light. 



Deverra DC. = Pituranthos Viv. (Umbell. ). 



Devil-in-a-bush, Nigdla; -'s bean (W.I.), Capparis jamaicensis Jacq. ; 

 -'s bit scabious, Scabiosa Succisa L. ; -'s cotton, Abroma augusta L. f. 



Devillea Tul. et Wedd. Podostemaceae. i Brazil. 



Dewberry, Riilnts caesins L. 



Dewevrea M. Micheli. Leguminosae (in. 6). i trop. Afr. 



Dewevrella De Wild. Apocynaceae (n. i). i trop. Afr. 



Deweya Torr. et A. Gray (Arracacia BH.}. Umbell. (in. 4). 4 

 W. N. Am. 



142 



