572 ROSACEAE 



i a. Chrysobalaninae (nearly reg.) : Chrysobalanus. 

 i b. Hirtellinae (zygomorphic) : Hirtella. 



Resales. The 2ist order (EP.) of Archichlamydeae. The nth (BH.} 

 of Polypetalae. 



Rosantnus Small (Gaudichaudia p.p.)- Malpigh. (i). i Mexico. 



Roscneria H. Wendl. Palmae (iv. i). i Seychelles. 



Roscoea Sm. Zingiberaceae. 13 Himal. to China. R. purpurea Sni., 

 often cult., has a -|- fl. with two lips. Insects landing on the lower 

 and probing are obstructed by two projecting spikes from the lower 

 end of the anther ; pressure on these brings the anther (with the 

 stigma, which projects beyond it) down upon the insect's back. 

 Protand. [Cf. Salvia.] 



Rose, Rosa ; alpine -, Rhododendron ferrugineum L. , &c. ; Andes -, 

 Be/aria; -apple, Eugenia malaccensis L. ; attar Of-, Rosa dainas- 

 cena Mill.; -bay (Am.), Rhododendron; Christmas-, Helleborus; 

 guelder -, Viburnum ; Jamaica - (W.I.), Blakea triuervia L. ; 



- mallow (Am.), Hibiscus; -mary, Rosmarinns officinalis L. ; - of 

 Jericho, Anastatica ; - pink, Sabbatia ; rock -, Helianthemum ; 



- root, Sedum ; - wood, Dalbergia. 



Roseanthus Cogn. Cucurbitaceae (3). i Mexico, Calif. 



Roselle, rozeile, Hibiscus Sabdariffa L. 



Rosenbachia Regel. Labiatae (i. i), formerly Verben. i Turkestan. 



Rosenbergia Oerst. (Cobaea p.p.). Polemoniaceae. 9 N. Am. 



Rosenia Thunb. Compositae (4). i Cape Colony. 



Rosiflorae (Warming). The igth order of Choripetalae. 



Rosilla Less. (Dysodia p.p. EP.}. Compositae (6). i Mexico. 



Rosin, Finns; -plant (Am.), Silphium. 



Rosmarinus (Tourn.) L. Labiatae (i. 2). i Medit., R. officinalis L. 



(rosemary), a xero. shrub with 1. rolled back and stomata in hairy 



grooves on lower side (cf. Ericaceae, Empetrum). Oil of rosemary 



is employed in perfumery, &c. 

 Rostellaria Gaertn. f. Inc. sed. i, habitat? 

 Rostellaria Nees (Jtis/icia p.p.). Acanthaceae (iv. B). 10 As. 

 Rostellate, rostrate, beaked. 

 Rostellum, OrchiJaceae. 



Rostkovia Desv. Juncaceae. i S. Am., N.Z. 

 Rosulate, rosetted. 



Rotaceus (Lat. ), rotate, wheel-shaped, Veronica. 

 Rotala L. Lythraceae. 32 trop. and subtrop., in wet places. 

 Rotang, rattan. 



Rotantha Baker (Lawsonia p.p. EP.}. Lythraceae. i Madag. 

 Rothia Pers. Leguminosae (ill. 3). 2 palaeotrop. 

 Rothrockia A. Gray. Asclepiadaceae (n. 4). i Arizona. 

 Rottboellia L. f. (BH. excl. Ophiurus Gaertn. f. ). Gramineae (2). 



35 trop. and subtrop. 

 Rottlera Roxb. = Mallotus Lour. (Euph.). 

 Rotund, orbicular-oblong. 

 Roubieva Moq. (Chenopodium p.p. EP.}. Chenopodiaceae (A). 2 S. 



Am. 



Roucheria Planch. Linaceae. 4 Guiana. 

 Roucou, annatto, Bixa Orellana L. 



