GERANIA CEAE 2 8 7 



Placentae usu. parietal, but they commonly project far into the cavity 

 and spread out at their ends; occasionally the ovary is 2-Ioc. with 

 axile plac. ; ovules usu. oo , anatr.; style simple; stigma simple or 

 2-lobed. Fr. usu. a septiciclal caps, with oo seeds rarely a berry 

 (Chironia, &c.); seeds small; embryo small, in abundant endosp. 



The flowers of G. are insect-fertilised. The genus Gentiana has 

 been very fully studied; see also Menyanthes (dimorphic). 



Classification and chief genera (after Engler): 



I. GENTIANOIDEAE (1. opp.: C conv. or imbr.) : Exacum, 



Erythraea, Chlora, Gentiana, Swertia. 



II. MENYAKTHOIDEAE (1. alt.; C induplicate-valvate) : 



Menyanthes, Limnanthemum. 



Gentianales (HH.} The 7th cohort of Gamopetalae. 



Gentianella Moench.= Gentiana Tourn. p.p. (Gent.). 



Gentilia A. Chevalier et Beille. Euphorbiaceae (A. I. 2). 2 trop. Afr. 



Genus, see Nomenclature. 



Genyorchis Schlechter. Orchidaceae (u. 16). 3 trop. Afr. 



Geo- (Gr. prefix), earth-; -carpic, producing subterranean fr., Ainphi- 

 curpaeii, Arachis, Cardanritie, Trigonella, Voandzeia ; -graphical 

 distribution, cf. textbooks; -philous, geocarpic ; -tropism, irrita- 

 bility to gravity. 



Geobaianus Small. Rosaceae (vi). 2 Florida. 



Geocardia Standley^Geophila D. Don (Rubiac.). 



Geocarpon Mackenzie. Aizoaceae (n). i Missouri. 



Geocharis Ridl. Zingiberaceae (l). 2 Malaya. 



Geochorda Cham, et Schlecht. Scrophulariaceae (n. 6). i warm 

 S. Am. 



Geococcus J. Drumm. ex Harv. Cruciferae (4). i N.W. Austr. 



Geodorum Jacks. Orchidaceae (n. 10). 10 Indomal. 



Geoffraea L. Leguminosae (in. 8). 4 trop. Am. 



Geoffraya Bonati. Scrophulariaceae (ll. 6). i Cambogia. 



Geomitra Becc. (Bagnisia p.p. EP.). Burmanniaceae. 2 Borneo. 



Geonoma Wild. Palmae (iv. i). 85 trop. Am. 



Geopanax Hemsl. Araliaceae (i). i Seychelles. 



Geophila D. Don. Rubiaceae (n. 5). 15 trop. 



Geoprumnon Rydberg (Astragahis p.p. EP.). Leguminosae (in. 6). 

 6 N. Am. 



Georchis Lindl. =Goodyera R. Br. (Orchid.). 



Georgina \Vilkl. = Dahlia Cav. (Comp.). 



Geosiris Baill. Burmanniaceae. i Madag. 



Geostachys Ridl. Zingiberaceae (i). 5 Malaya. 



Geracium Reichb. = Crepis Vaill. p.p. (Comp.). 



Geraniaceae (EP.\ BH. incl. Oxalidaeeae, Limnanthaceae, Tropaeo- 

 laceae, Balsaminaceae). Dicots. (Archichl. Geraniales EP., BH.}. 

 it gen., 650 sp., cosmop., mostly herbs, often hairy; Sarcocaulon 

 fleshy. Fl. usu. reg. , $, 5-merous. K =,, imbr. with valvate tips, 

 persistent ; C 5, imbi . or conv. ; A as many or 2 or 3 times as many as 

 petals, united at base, obdipl. when > i whorl, anther usu. versatile ; 

 G (5) or (2 3) or (3 5), with i 2 or 2 oo ovules in each on axile 

 plac. ; ovules usu. pend. with ventral raphe and micropyle facing 

 upwards ; style long with 5 stigmas. Fls. usu. protandr. Fr. usu. a 



