116 SAXIFRAGACE-.E. (SAXIFRAGE FAMILY.) 



Suborder II. ESCAELONSEiE. The Escallonia Family. 



9. ITEA, L. Itea. 



Calyx 5-cleft, free from the ovary. Petals 5, lanceolate, much longer than 

 the calyx, and longer than the .5 stamens. Pod oblong, 2-grooved, 2-cclled, 

 tipped with the 2 united styles, 2-parted (septicidal) when mature, several-seeded. 



— A shrul), with simple alternate and minutely serrate oblong pointed leaver 

 without stipules, and white flowers in simple dense racemes. (The Greek name 

 of the Willow") 



1. I. Vil'gbi&ara, L. — Wet places, New Jersey and southward, near the 

 coast. June. — Shruh 3° -8° high. 



Stjbordek III. HYDRAIVGIEyE. The Hydrangea Family. 



1©. HYDRANGEA, Gronov. Hydrangea. 



Calyx-tube hemispherical, 8-10-ribbed, coherent with the ovary; the limb 

 4-5-toothed. Petals ovate, valvate in the hud. Stamens 8 - 10, slender. Pod 

 crowned with the 2' diverging styles, 2-celled below, many-seeded, opening by a 

 hole between tin' styles. — Shrubs, with opposite petioled leaves, no stipules, 

 and numerous flowers in compound cymes. The marginal flowers are usually 

 sterile and radiant, consisting merely of a membranaceous and colored flat and 

 dilated calyx, and showy. (Name from {"Scop, water, and ayyoS] a vase.) 



1. II. aidboivscciis, L. (Wild Hydrangea.) Glabrous or nearly 

 so ; leaves ovate, rarely heart-shaped, pointed, senate, green both sides; cymes 

 flat. — Rocky banks, N. Penn., to 111., and southward, chiefly along the moun- 

 tains. July. — Flowers often all fertile, rarely all radiant, like the Garden 

 Hydrangea. 



11. P HIE A DEEP HITS, L. Mock Orange or Stringa. 



Calyx-tube top-shaped, coherent with the ovary ; the limb 4 - 5-parted, spread- 

 ing, persistent, valvate in the bud. Petals rounded or obovate, large, convolute 

 in the bud. Stamens 20-40. Styles 3-5, united below or nearly to the top. 

 Stigmas oblong or linear. Pod 3- 5-ccllcd, splitting at length into as man} 

 pieces. Seeds very numerous, on thick placentae projecting from the axis, pen- 

 dulous, with a loose membranaceous coat prolonged at both ends. — Shrubs, 

 with opposite often toothed leaves, no stipules, and solitary or cymosc-clustered 

 showy white flowers. (An ancient name applied by Linnaeus to this genus for 

 no particular reason.) 



1. P. ilioduriis, L. Glabrous; leaves ovate or ovate-oblong, pointed, 

 entire or with some spreading teeth ; flowers single or few at the ends of the 

 diverging branches, scentless ; calyx-lobes acute, scarcely longer than the tuba 



— Mountains of Virginia and southward. 



Var. graildifloi'US. Somewhat pubescent; flowers larger ; calyx-lobes 

 longer and taper-pointed. — Virginia and southward, near the mountains. 



