CELASTHACRyE. (STAIK-TREK FAMILY.) 115 



♦ * Loins of the cnlifr and stamrna 5 : petalu ivantintj. 

 3. R. alnifblius, Llk-r. A low shnil), k-avcs oval, at-iitf, scrrati-, nearly 

 straiylit-VfiiR'd : Iriiit 3-^c^.•ll^.■d. — lS\vaiiii»s, Maine to IVnii., Illinois, and norili- 

 ward. June. 



3. FRANGULA, Tourn. ALDKn-BrcKxiioRx. 



Sccd.< not grooved or eoneave (hut convex) on the haek. Cotyledons plane, 

 thiek. Flowers pert'eet; the lohes of the calyx, petals, ar.d stamens almost 

 always 5. Leaves with nearly straight parallel veins. Otherwise as in llhaiu- 

 nus. (Name from Jhiiigo, to hreak, in allusion to the brittleness of the stems.) 



1. P. Caroliniaua, Gray. Thornless shrub or small tree ; leaves (3' -5' 

 long) oblong, obseurely serrulate, nearly glabrous, deeiduous ; flowers in one 

 form umbelled, in another solitary in the axils, short-jjeduneled ; drupe globose, 

 3-sceded. — Secaueus swamp, New Jersey, Dr. Post, W. II. Liij<iM, ami river- 

 banks. Virginia to Kentueky and southward. June. 



4. CEANOTHUS, L. New Jeksey Tea. Red-root. 



Calyx 5-lobed ; the lobes colored and incurved ; the lower part with the thick 

 disk cohering with the ovary, the upper separating across in fruit. Petals 

 hooded, spreading, on slender claws longer than the calyx. Filaments also 

 elongated. Fruit 3-lobcd, dry and sijlitting into its 3 carpels when ripe. Seed 

 as in Frangula. — Shrubby plants; the flowers in little umbel-like clusters, 

 which arc crowded in dense panicles or corymbs at the summit of naked flower- 

 branches : caly.x and pedicels colored like the petals. ( An obscure name in 

 Theophrastus, jirobably missiiollod.) 



1. C Americanus, L. (New Jersey Tea.) Leaves ovate or ob- 

 long-ovate, 3-ribbed, serrate, downy beneath, often heart-shaped at the base : 

 common peduncles elongated. —Dry woodlands. July. — Stems 10-3° liigh 

 from a dark red root : branches downy. Flowers in ])rotty white elustei-s. — 

 The leaves were used for tea during the American Kevolutiou ; and the manu- 

 facture has been recently revived in IVnnsylvania. 



2. C. OV^lis, Bigelow. Leaves narrowly oval or elliptical-lanceolate, finely 

 glandular-serrate, glabrous or nearly so, as well as the short common pedimcles. 

 — Dry rocks, W. Vermont to Wisconsin, and westward. May. — The white 

 flowers laiger than in No. 1, more corymbed : leaves narrower, smooth, mostly 

 acute at both ends. 



Okder 29. CELASTRACE.E. (Staff-tree Family.) 



SJirub.f with .simple leaven, and .^Jiiall 7-ef/uInr flowers, the sepah and the 

 petah both imbricated in the hud, the 4 or o perignnoua stamens as many as 

 the petals and alternate icith them, inserted on a disk which fills the bottom 

 of the cali/x and sometimes covers the ovari/. Seeds arilled. — Ovules one 

 or lew (erect or pendulous) in each cell, anatropoiis : styles united into 

 one. Fruit 2-5-celled, free from the calyx. Embryo large, in fleshy 

 albumen : cotyledons broad and thin. Stijjules niluutc and fu-jacious. 

 Pedicels jointed. — Represented hy two genera. 



