Ceanothus. RHAMNACE.E. 145 



2. Ceanothus ovalis, Bigehw. (Plate XX.) Narroiv-leaved Ceanothus. 



Leaves narrowly oblong or elliptical-lanceolate, 3-nerved from the base, serrulate, nearly 

 smooth; thyrsus umbel-like, the pedicels elongated and closely approximated. — ^z^eZ. /. 

 Bost. p. 92 ; Gray in ann. lye. N. York, 3. p. 224 ; Torr. 4- Gr. fl. N. Am. 1. p. 265. 

 C. intermedius. Hook. fl. Bor.-Ajn. 1. p. 124, (not of Pursh?) 



A shrub 2-3 feet high. Leaves 1 - 2^ inches long, varying from oval to linear-oblong, 

 acute at each end, or sometimes obtuse at the summit ; pubescent when young, but at length 

 nearly or quite smooth, except a slight pubescence on the veins underneath ; the serratures 

 tipped with black glands. Peduncles 1 - 2 inches long, naked, or with one or two small 

 leaves just below the flowers. Pedicels 8-10 lines long. 



Barren rocky places ; western shore of Lake Champlain, and in Jefferson county. May - 

 June. — Easily distinguished from the preceding, by its narrow leaves, and short, almost 

 hemispherical thyrsus. 



Order XXXV. VITACE.E. Juss. The Vine Tribe. 



Ampelide*, Kunth, Eyidl. ^c. 



Calyx minute, entire or 4 - 5-toothed. Petals 4-5, inserted on the outside of 

 an annular or urceolate disk, distinct or cohering by their tips, caducous, 

 valvate in aestivation. Stamens as many as the petals and opposite them ! , 

 inserted on the surface of the disk. Ovary 2-celled, with 2 erect anatropous 

 ovules in each cell. Style short or none : stigma simple. Fruit a globose, 

 mostly pulpy berry, with 1 or 2 seeds in each cell, often by abortion 1 -celled,' 

 1 - 2-seeded. Seeds erect, with a bony or coriaceous testa. Embryo much 

 shorter than the horny or fleshy albumen : cotyledons lanceolate or subulate. 

 — Shrubby plants, climbing by tendrils, with simple or compound leaves. 

 Flowers small, greenish, often polygamous, in racemose or thyrsoid panicles. 



1. VITIS. Linn. ; GcErt.fr. t. 106 ; W. cj- Am. prodr. fl. Ind. Or. 1. p. 124 ; Torr. ^ 

 Gr. fl. N. Am. 1. p. 242. ^y;v£. 



[An ancirnt Latin name of tlic vine] 



Calyx elighlly 4 - 5-tooihod. Petals 4-5, distinct and spreading, or united at the apex but 

 distinct at the base, and falling off like a calyptra. Disk elevated in the centre, and sur- 

 [Floba.] 19 



