204 Grossulariaceae | 
A. Lower leaf-surface pubescent all over; leaves usually dentate; styles united for 2/3 
their length. W. C. P. gordonianus Lindl. 
AA. Lower leaf-surface pubescent only on the veins, leaves entire or denticulate; styles 
united for 1/4, their length or rarely more. E. 
P. lewisii Pursh 
GROSSULARIACEAE (Ribesaceae) Gooseberry Family 
Shrubs; stems erect to prostrate, often prickly, sometimes with spines at base of 
petiole. Leaves alternate, simple, petioled, deciduous or persistent, on the lateral branches 
usually fascicled; blades rarely entire, palmately veined; petiole often dilated at base; 
stipules none or adnate to the petiole. Flowers bracted, small, regular, on short axillary 
branches, solitary or in umbels or racemes. Sepals distinct or united at base into a saucer- 
shaped or campanulate cup, 4—5. Petals small, as many as the sepals and alternate 
with them, on the calyx. Stamens as many as the sepale, opposite them. Ovary inferior; 
style 2—3-lobed; placentae 2—-3, parietal. Fruit a berry, |-celled. Seeds several to 
many. 
RIBES GOOSEBERRY or CURRANT 
Leaves dentate to lobed. Flowers few to many in a cluster. Ovary and fruit 
smooth or glandular or spiny. Fruit various in color. (The Arabic name.) 
A. Stems not spiny nor prickly; pedicles jointed beneath the ovary, and fruit breaking 
off at this point. 
B. Flowers yellow. 
C. Calyx-segments 5—-8 mm. long; calyx-tube 2—3 times as long as wide; berry 
yellow or red or black. E. (JR. tenuiflorum.) 
R. aureum Pursh (Golden Currant) 
CC. Calyx-segments 3 mm. long; sepals but very little united at base; berry red. 
Gl se ' BR. erythrocarpum ©. & B. 
BB. Flowers white or green or red. an 
D. Calyx-tube saucer-shaped or almost none. 
E. Ovary glabrous; berry red, smooth. 
F. Sepals usually somewhat purplish; petals red; anther-cells parallel. C. E. 
(R. ciliosum.) R. triste Pall. (Swamp Red Currant) 
FF, Sepals and petals yellowish-green; anther-cells widely divergent; es- 
caped from cultivation. 
R. vulgare Lam. (Garden Red Currant) 
EE. Ovary hairy or glandular; berry black, hairy or glandular. 
G. Sepals greenish; berry without a bloom. E. CR. petiolare.) 
R. hudsonianum Rich. 
GG. Sepals white ; berry with a bloom. 
H. Ovary with sessile glands; bracts of the inflorescence widest above 
their middle; leaves 5—-20 cm. wide, 5—-7-lobed. W. C. 
R. bracteosum Dougl. (Stink Currant) 
HH. Ovary with stalked glands; bracts of the inflorescence widest below 
their middle; leaves 5-10 cm. wide, 3——5-lobed. 
I. Bracts about equaling the pedicels; racemes pendent. W.C. (R. 
howellii; R. laxiflorum for our region.) 
R. acerifolium How. 
II. Bracts not more than !/4 the length of the pedicels: racemes erect 
or ascending. W. C. 
R. laxiflorum Pursh 

