RHUS, ROSA. 405 



53. RHUS. 43. 94. 



gla'brum (sleek sumach. O. g. r. Ju. ^ ), branches, petioles and leaves glabrous ; 

 leaves pinnate, many paired ; leafets lance oblong, serrate, whitish beneath ; 

 fruit silky. The leaves of both the species are used for tanning morocco 

 leather. Berries red and sour. 6 12 f. 



ver"nix (poison sumach, y-g. J Ju. < ), very smooth ; leaves pinnate ; leafets 

 in many pairs, oval, abruptly acuminate, entire ; panicle loose ; flowers dioe- 

 cious. A small tree. S. 



toxicoden"dron (O. g-y. J Ju. > ), stem erect ; leaves ternate ; leafets broad 

 oval, entire or sinuate dentate, sub-pubescent beneath ; flowers dioecious in 

 sessile axillary racemes. 1 3 f. Var. radicans (poison ivy), stem climbing. 

 Exotic. 



cof'inus (false fringe-tree, Aaron's beard, p-g. Ju. >), leaves simple, obovate 

 and ovate ; panicle racemes plumose. A small tree, with very minute flow- 

 ers supported on capillary, downy, or hairy peduncles. Indigenous to Sibe- 

 beria, Austria and Lombardy. 



51. RIBES. 36. 85. 

 Currant like. Flowers racemed. 



flo'ridum (wild black currant. O. M. ^ ), unarmed ; leaves punctate both 

 sides ; racemes pendant; calyx cylindric ; bracts longer than the pedicels. 

 34 f. S. 



Gooseberry like. Peduncles mostly few flowered, rarely sub-racemed. 



trifio'rum (wild gooseberry. A. g. M. > ), spine sub-axillary ; leaves glabrous, 

 3 5 lobed,gash toothed ; peduncles sub 3 flowered ; with the pedicels elon- 

 gated ; bracts very short ; petals spatulate, undulate; style hirsute, half 2 or 

 3 cleft, exsert ; berry glabrous. Berries pale red. 34 f. S. 

 Exotic. 



ru'brum (currant, g. M. > ), unarmed ; racemes glabrous, nodding ; corolla 

 flat ; petals obcordate ; leaves obtusely 5 lobed ; stem erect. Berries red. 

 2 4f. 



ni'grufn (black currant, g. M. ^ ), unarmed ; leaves punctate beneath ; v ra- 

 cemes lax ; flowers bell form ; bracts shorter than the pedicels. Berries 

 black. 5 3f. 



grossula'ria (English gooseberry, g. M. ^ ), branches prickly ; petioles hairy ; 

 bracts 2 leaved ; berry glabrous or hirsute. 24 f. 

 1915. RICINUS. 38. 96. 

 Exotic. 



commu'nis (castor oil plant, palma christi. ), leaves peltate, palmate ; lobes 

 lanceolate, serrate ; stem with hoary mealiness. 4 6 f. 

 1610. ROBINIA. 32. 93. 



pseudo-aca'cia (locust-tree, false acacia. A. w. M. $ ), leaves pinnate, with a 

 terminal leafet ; stipules thorny, or a thorn ; racemes pendant ; teeth of the 

 calyx unawned ; legumes smooth. 3040 f. S. 



1113. ROSA. 35. 93. 



parvi'Jlora (wild rose. O. r. w. ^ ), germs depressed globose ; germs and pedun- 

 cles hispid ; petioles pubescent, sub-aculeate ; stem glabrous ; prickles stipu- 

 lar, straight ; leafets lance oval, simply serrate, glabrous ; flowers somewhat 

 in pairs. Very variable. 1 3 f. S. 



rubigino'sa (sweet briar. E. r. J. >), germ ovate; peduncles and petioles glan- 

 dular hispid ; petioles somewhat prickly ; stem glabrous ; prickles scattered, 

 hooked, slender ; leafets (5 or 7), ovate, serrate, sub-glandular beneath. 3 

 4 f. S. 



Exotic. 



cam'na. (dog rose. > ), germs ovate ; germs and peduncles glabrous ; stem and 

 petioles prickly ; leaves ovate, glabrous. 



raVlica (french rose, common rose. r. J. 5 ), germs ovate ; germs and pedun- 

 cles hispid ; stem and petioles hispid-prickly. Sometimes the colours are 

 variegated. 



damasce'na (damask rose. w. r. J. ^>), calyx half pinnate; germ ovate, turgid 

 (thickened near its top), bristly ; stem and petioles prickly ; leafets ovate, 

 pointed, downy beneath. 



musco'sa (moss rose. r. Au. ^ ), germs ovate ; calyx, peduncles, petioles and 



