RAVENIA 557 



Raphanistnim L. in Brit. ; pods jointed between seeds (lomentose). 

 R. sativus L. (radish) with root-storage. 



Raphe, the ridge where the stalk is attached to side of ovule. 



Raphia Beauv. Palmae (ill). 8 trop. Afr., R. vinifera Beauv. (wine 

 palm) also on the Amazon (see fam.). Spadix monoec. ; the bracts 

 have a curious sheathing form. Berry enclosed in large sheathing 

 scales. In R. Ritffia Mart, roots develop between the dead leaf- 

 bases ; they curve upwards and are said to act as respiratory organs. 



Raphiacme Harv. (Raphionacme). Asclepiadaceae (i). 15 S. Afr. 



Raphides, needle-shaped crystals of Ca oxalate ; Arum. 



RapMdiocystis Hook, f, Cucurbitaceae (3). 3 trop. Afr., Madag. 



Raphidophora Hassk. = Rhaphidophora Schott. (Arac.). 



Raphiolepis Lindl. Rosaceae (n). 4 China, Japan. 



Raphionacme Harv. {Raphiacme). Asclepiadaceae (i). 1.58. Afr. 



Raphistemma Wall. Asclepiadaceae (n. i). 2 Indomal. 



Raphithamnus Miers. Verbenaceae (i). i Chili. 



Rapinia Montr. Verbenaceae (4). New Caled. 



Rapistrum Tourn. ex Medic. Cruciferae (2). 10 Medit., micl-Eur. 



Rapona Baill. (Breweria p.p.). Convolvulaceae (i). i Madag. 



Raptostylus Post et O. Ktze. = Rhaptostylum Humb. et Bonpl. 



Rapunculus Tourn. ex Mill. = Phyteuma L. (Campan.). 



Rapuntium Tourn. ex Mill. = Lobelia L. (Campan.). 



Raputia Aubl. Rutaceae (i). 5 trop. Am., W.I. 



Rasamala. Altingia t-xcelsa Nor. 



Raspalia Brongn. (Nebelia Neck.). Bruniaceae. 6 S. Afr. 



Raspberry, Rubus Idaeus L. ; blackcap -, Rubus occidentalis L. 



Rathbunia Britton et Rose (Cereus p.p.). Cactaceae (in. i). 3 Mex. 



Rati (India), Abrus precatorius L. 



Ratibida Rafin. (Lepachys BH., Rudbeckia EP.}. Compositae (5). 

 2 N. Am. 



Ratonia DC. (Matayba EP.}. Sapindaceae (i). 36 warm Am. 



Rattan canes, the stiipped stems of climbing palms, esp. Calamus, 

 Daemonorops, Korthalsia, Plectocomia (Ridley in Str. Bull. 1903). 



Rattle box (Am.), - wort (W.I. ). Crotalaria; yellow -, Rhinantlius. 



Rattlesnake grass (Am.), Glyceria canadensis Tiin. ; -plantain (Am.), 

 Goodyera\ -weed (Am.), Hieraeium venosuin L. 



Ratzeburgia Kunth. Gramineae (2). i Burma. 



Rauia Nees et Mart. Rutaceae (i). i S.E. Brazil. 



Rautanenia Buchenau. Alismaceae. i S.W. Afr. 



Rauwenhoffia Scheff. Anonaceae (i). 2 Malaya. 



Rauwolfla Plum, ex L. (incl. Oplrioxylon L.). Apocynaceae (i. 3). 50 

 trop. L. often in whorls of 3 or 4. 



Ravenala Adans. Musaceae. 2 Madag. and S.Am. They have a 

 true sub-aerial stem, which bears large 2-ranked 1. giving the pi. 

 a peculiar fan-like appearance. A*, giiyanensis Steud. is the only Am. 

 sp. of the suborder Museae. R. madagascariensis J. F. Gmel. is the 

 traveller's tree, so-called because the water that accumulates in the 

 leaf-bases has been used for drinking in cases of necessity. It may 

 be found by piercing the base with a knife. 



Ravenea H. Wendl. Palmae (iv. i). i Comoros. 



Ravenla Veil. Rutaceae (ij. 5 Brazil, W.I. 



