562 RETINISPORA 



Sieb. et Zucc. Cupressus pisifera; R. recurvata hort. and R. rigida 

 Carr. = Thuya orientalis ; R. squarrosa Sieb. et Zucc. and R. stricta 

 hort. = Cupressus pisifera. For further synonymy see Index Kewensis. 



Retinodendropsis Heim. Dipterocarpaceae. i Borneo. 



Retting, rutting away the softer tissues, cf. Linum, Cocos. 



Retzia Thunb. Loganiaceae (Solan. BH.). i S. Afr. 



Reussia Endl. Pontederiaceae. 2 S. Am. 



Reutera Boiss. = Pimpinella Riv. p.p. (Umbell.). 



Reverchonia A. Gray. Euphorbiaceae (A. i. i). i Texas. 



Reya O. Ktze. (Burchardia R. Br.). Liliaceae (i). i Austr., Tasm. 



Reyesia Clos (Salpiglossis p.p. EP.). Solanaceae (5). i Chili. 



Reynaudia Kunth. Gramineae (6). i Cuba, S. Domingo. 



Reynoldsia A. Gray (Trevesia BH.). Araliaceae (i). 4 Polynesia. 



Reynosia Griseb. Rhamnaceae. 5 W.I., Florida. 



Reynoutria Houtt. Inc. sed. i Japan. 



Rhabdadenia Muell.-Arg. Apocynaceae (11. i). 7 trop. Am., W.I. 



Rhabdia Mart. Boraginaceae (n). i trop. 



Rhabdodendron Gilg et Pilger. Rubiaceae (inc. sed.). 7 Amazon. 



Rhabdophyllum Van Tiegh. (Oiiratea Aubl.). Ochnac. 25 trop. Afr. 



Rhabdosciadium Boiss. Umbelliferae (ill. 2). 3 Persia. 



Rhabdostigma Hook. f. Rubiaceae (n. i). i E. Afr. 



Rhabdothamnopsis Hemsl. Gesneriaceae (i). i China. 



Rhabdothamnus A. Cunn. Gesneriaceae (i). i New Zealand. 



Rhabdotheca Cass. = Launaea Cass. p.p. (Comp.). 



Rhachicallis DC. Rubiaceae (i. 3). i W.I. 



Rhachidospermum Vasey (Jouvea p.p. EP.). Gramineae (12). i Calif. 



Rhachis, rachis ; rhaphe, raphe. 



Rhacodiscus Lindau. Acanthaceae (iv. B). 3 S. Am. 



Rhacoma Adans. (Leuzea BH. , Centanrea p.p.). Comp. ( 1 1). 8 W.I., 

 S. Am. 



Rhacoma L. (Myginda BH.). Celastraceae. 15 W.I., trop. Am. 



Rhadamanthus Salisb. Liliaceae (v). 2 S. Afr. 



Rhagadiolus Tourn. ex Scop. (BH. incl. Hedypnois and Garhadiolus). 

 Compositae (13). i Medit. Fr. linear, without pappus, completely 

 enwrapped in an involucral bract. 



Rhagodia R. Br. Chenopodiaceae (A). 1 2 Austr. 



Rhamnaceae (EP., BH.). Dicots. (Archichl. Rhamnales; Celastrales 

 BH.). 40 gen., 500 sp., cosmop. Mostly trees or shrubs, often 

 climbing (by aid of hooks in Ventilago, tendrils in Gouania, &c., 

 twining stems in Berchemia): thorns occur in some, and especially in 

 Colletia, &c. (q.v.). In these pi. too, serial buds occur in the 1. -axils. 

 L. simple, usu. with stip., never lobed or divided. Infl. cymose, usu. 

 a corymb. 



Fl. inconspic., 5 or rarely unisexual, reg., sometimes apet. Recept. 

 hollow, free from or united to the ovary. K 5 4, valvate; C 5 4, 

 usu. small, often strongly concave, frequently clawed at base ; A 5 4, 

 alt. with sepals, usu enclosed by the petals, at any rate at first. Disc 

 usu. well developed, intra-staminal ; G free or united to recept. , 

 3 2- (rarely by abortion i-) loc. (sometimes 4- or typically i-loc); in 

 each loc. i (rarely 2) basal ovule with downwardly-directed micropyle; 

 style simple or divided. Fr. dry, splitting into dehisc. or indeh. 



