SAXIFRAGACEJE. (SAXIFRAGE FAMILY.) 155 
streams, among the mountains, Georgia, and northward. April and May. 1— 
Stems 4' - 6! long. : 
9. ITEA, L. 
Calyx campanulate, 5-cleft, free from the ovary. Petals 5, lanceolate. Sta- 
mens 5, shorter than the petals. ‘Styles 2, united. Capsule 2-celled, 2-furrowed, 
septicidally 2-valved, several-seeded. — A shrub with simple oblong or oval ser- 
rate pubescent leaves, and close mostly drooping racemes of white fragrant flow- 
ers terminating the branches. 
1. I. Virginica, L.— Swamps, Florida to Mississippi, and northward. 
May and June. — Shrub 4°- 10° high. 
10. HYDRANGEA, Gronov. 
Calyx-tube hemispherical, 8—10-ribbed, coherent with the ovary; the limb 
‘4—5-toothed, persistent. Petals ovate, valvate in the bud. Stamens 8 - 10, fili- 
form. Capsule crowned with the 2 diverging styles, 2-celled, many-seeded, open- 
ing at the apex between the styles. — Erect shrubs, with opposite petioled leaves, 
without stipules, and whitish or purplish flowers, in ample compound cymes; 
the marginal flowers mostly sterile, with the calyx-lobes enlarged and showy. 
1. H. arborescens, L. Smoothish; leaves ovate, acute or acuminate, 
serrate, mostly rounded or cordate at the base; cymes crowded, flat-topped; - 
sterile flowers few or none. (H. vulgaris, Michx. H. cordata, Pursh.) —Banks - 
of streams, Florida to Mississippi, and northward. June and July. — Shrub 
4°-8° high. Leaves 3! - 6! long. 
2. H. radiata, Walt. Leaves ovate, acuminate, serrate, mostly cordate at 
the base, white-tomentose beneath ; cymes flat-topped ; sterile flowers few. — 
ae soil, Georgia, Carolina, and Tennessee. May and June, — Shrub 49-89 
8. H. quercifolia, Bartram. Young branches and leaves densely to- 
mentose ; leaves oval, sharply 5-lobed, serrate; cymes clustered, forming a close 
oblong panicle ; sterile flowers large, numerous. — Shady banks, Florida, Geor- 
gia, and westward. May and June. — Shrub 3° - 6° high. Leaves 4/-8! long. 
Sterile flowers whitish, turning purple. e 
Es ll. DECUMARIA, L. ioe 
Flowers all fertile. Calyx-tube turbinate, coherent with the ovary, 7-10- 
toothed. Petals valvate in the bud, oblong. Stamens 21-30. Styles united, 
Persistent. Stigma thick, 7-10-rayed. Capsule 10-15-ribbed, 7 -10-celled, 
-Sang at the sides; the thin partitions at length separating obliquely into nu- 
merous chaffy scales. Seeds numerous, suspended. — A ‘smooth climbing | 
shrub, With opposite ovate or oblong entire or serrate leaves, and numerous odor- - 
Ous White flowers in compound terminal cymes. — 
1. D. barbara, L.— Banks of streams, Florida to North Caro 
