45U SAXIlllAGACKAl': (.SAXIFRAGE FAMILY) 



11. DECUMARIA L. 



Flowers all fertile. Calyx-tube turbinate, 7-10-toothed. Petals oblong. 

 Stamens 20-80. !Styles united into one, persistent. Stigma thick, 7-10-rayed. 

 Capsule 10-15-ribbed, 7-10-celled, many-seeded, bursting at the sides, the thin 

 partitions at length separating into numerous chaffy scales. — Smooth climbing 

 shrub, with ovate or oblong entire or serrate leaves, no stipules, and numerous 

 fragrant white flowers in compound terminal cymes. (Name said to be derived 

 from decumanus^ of the tenth part, referring to the often 10-merous flowers.) 



1. D. barbara L. Leaves shining, sometimes pubescent ; cap.sule with the 

 persistent style and stigma urn-shaped, pendulous. — Banks of streams, Dismal 

 Swamp, Va., to Fla. and La. 



12. HYDRANGEA [Gronov.] L. 



Calyx-tube hemispherical, 8-10-ribbed, adherent to the ovary ; the limb 4-5- 

 toothed. Petals ovate, valvate in the bud. Stamens 8-10, slender. Cap- 

 sule L5-ribbed, 2-celled below, many-seeded, opening by a hole between the 

 2-4 diverging .styles. — Shrubs, with opposite petioled exstipulate leaves. The 

 marginal flowers of the compound cymes usually sterile and radiant, consisting 

 merely of a showy membranaceous and colored flat and dilated calyx. (Name 

 from u5wp, icater^ and ay-Yelov, a ves.sel, from the shape of the capsule.) 



1. H. arborescens L. (Wild H.) Glabrous or nearly so, 8-25 dm. high ; 

 leaves ovate, rarely heart-shaped, pointed, serrate, usually somewhat paler green 

 beneath ; cymes flat ; flowers often all fertile, rarely all radiant. — Rocky banks, 

 s. N. Y. to Fla., w. to La. and Mo. 



2. H. cinerea Small. Branches cinereous-puberulent ; leaves densely tomen- 

 tose, much paler beneath. {H. radiata Man. ed. 0, not Walt.) — S. C. and Ga. 

 to Tenn. and Mo. 



13. iXEA [Gronov.] L. 



Calyx 5-cleft, free from the ovary or nearly so. Petals 5, lanceolate, much 

 longer than the calyx, and longer than the 5 stamens. Capsule oblong, 2- 

 grooved, 2-celled, tipped with the 2 united styles, 2-parted (septicidal) when 

 mature, several -seeded. — Shrubs, with simple alternate petioled exstipulate 

 leaves, and small white racemose flowers in simple racemes. (Greek name of 

 the Willow.) 



1. I. virginica L. Leaves deciduous, oblong, pointed, minutely errate. — 

 Swamps, chiefly on the coastal plain, N. J. and Pa. to Fla. and Tex. ; inland in 

 Miss, basin to 111. and Mo. May, June. 



14. rIbES L. Currant. Gooseberry 



Calyx 5-lobed, often colored ; the tube adherent to the ovary. Petals 5, 

 inserted in the throat of the calyx, small. Stamens 5, alternate with the petals. 

 Ovary 1-celled, with two parietal placentae and 2 distinct o\ united styles. 

 Berry crowned with the shriveled remains of the calyx. — Low sometimes 

 prickly .shrub.s, with alternate palmately lobed lea,ves, which are plaited in the 

 Itud (except in one species), often fascicled on the branches ; the small flowers 

 from the same clusters, or from separate lateral buds. (Bibes, the Arabic 

 name.) 



* Peduncles l-4(rarely 5)-flowere(J, Bterns mostly bearinp spinfis at the base of the leafstalks or 

 clusters of leaves, and often with scattered bristly prickles. (Our species are indiscriminately 

 called Wild Goose hf.uuy.) 

 Calyx-lobes decidedly shorter than the tube ; berries apt to be prickly. 

 Calyx-tube campanulate. 



Leaves densely soft-pubescent 1. /?. Ci/noshaH. 



Leaves only sparingly j)ilose (1) ^. Ci/tioahtiti. v. qhihratum 



Calyx-tube narrowly cylindric 2. R. hurenense. 



