210 SAXIFRAGACEAE 



ITEA — continued 



hairless except for axil tufts below. Fls. greenish white, in drooping 

 spikes up to 12 long. China. (Fig. 97 A.) 

 /. virginica. 5. July. D. Ls. narrowly ov., lane, 3, finely toothed, downy 

 below. Fls. creamy white, fragrant, in erect spikes up to 6 long. East 

 United States. (Fig. 97 b.) 



Jamesia AMERICANA. 7. May. D. Stems bright brown, stout, pithy; bark 

 peeling. Ls. opposite, ov., 2, coarsely and evenly toothed, very hairy. Fls. |, white, 

 in erect terminal panicles, K5, C5, Aio, Gi. Rocky Mountains. (Fig. 61 E.) 



PHILADELPHUS. Mock Orange, Syringa. Stems with solid white pith. 

 Ls. opposite, distantly toothed, 3 -5 -nerved or with chief veins arising near base, 

 short-stalked. Fls. usually white, in terminal racemes or branched clusters at end 

 of side-shoots, K4, C4, A 00, G (3-5). Fruit dry, 4-celled, with numerous seeds. 



{a) Fls. in racemes or clusters of five or more 



P. coronarius. 12. June. D. Ls. ov., lane, 4, nearly hairless. Fls. i, white, 

 heavy-scented, in terminal 5-9-flowered racemes. Asia. (Fig. 61 A.) 

 Y uriety flore pleno. Fls. double. 

 Variety /o//w aureis. Ls. yellow. 

 Variety variegatus. Ls. with white border. 

 P. Delavayi. 10. June. D, Ls. ov., 3, rounded or heart-shaped base, white- 

 felted below. Fls. I, white, fragrant, in 7- 11 -flowered racemes, calyx 

 purple, hairless. China. (Fig. 61 c.) 

 P. Lemoinei. 6. June. D. Ls. ov., 2|, coarsely toothed, hairy. Fls. i, white, 

 fragrant, in 5-9-flowered racemes at end of leafy shoots. Hybrid. 

 Variety Virginal. Fls. 2, double. 

 P. Lewisii. 12. July. D. Branchlets greyish brown, drooping, not peeling. 

 Ls. ov., lane, 4, coarsely toothed or entire, scattered hairs below. Fls. 

 i^, white, scentless, in 5-9-flowered racemes. West United States. 

 (Fig. 61 B.) 



{b) Fls. solitary or in threes 



P. grandiflorus. 15. June-July. D. Ls. ov., lane, 5, slender-pointed, sharply 



toothed, bristly along chief veins. Fls. 2, white, scentless. South United 



States. 

 P. microphyllus. 4. June. D. Branchlets slender, rigid, downy. Ls. ov., 



lane, f, entire, bright green above, grey and hairy below. Fls. white, 



very fragrant. Colorado and Arizona. (Fig. 67 a.) 

 P. purpureo-maculatus. 6. June. D. Branchlets reddish brown, hairy. Ls. 



ov. or nearly circular, i|, 1-3 -toothed on either side, hairy. Fls. i|, 



white with purple blotch at base of each petal, fragrant. Hybrid. 



(Fig. 61 D.) 



PiLEOSTEGiA VIBURNOIDES. 20. Scptcmber-October. E. Prostrate or climbing. 

 Ls. opposite, lane, 6, pointed, tapering base, strongly veined and keeled, minutely 

 pitted below. Fls. ^, white, with conspicuous white stamens; densely crowded in 

 terminal panicles up to 6 long. Fruit small, dry, top-shaped. India (Khasi Hills). 

 (Fig. 76 c.) 



RIBES. Currants and Gooseberries. Ls. alternate or in clusters, palmately 



