GROSSULARIACEAE 511 
B. Calyx-lobes shorter than the limb: berry prickly. 5. R. Cynosbati. 
Plants unarmed : racemes many-flowered, or more than 3-flowered. (Currants.) 
Sepals distinct to the top of the ovary. 
Foliage viscid with glandular-pubescence: bracts longer than the pedicels. 6. R. resinosum. 
Inflorescence only glandular-pubescent : bracts shorter than the pedicels. 7. R. prostratum. 
Sepals united for at least 1 cm. 8. R, aureum. 
1. Ribes curvàtum Small. A diffusely branched glabrate shrub, 5-8 dm. tall, armed 
with subulate spines 4-6 mm. long, the stem with a loose exfoliating bark, the branches 
purplish, the recurved or drooping branchlets reddish. Leaf-blades suborbicular, 1-2 cm. 
in diameter, 3-lobed, the lobes toothed, the terminal lobe often mucronate ; petioles slender, 
as long as the blade or shorter, usually somewhat villous: peduncles 7-8 mm. long, mostly 
1-flowered : pedicels twisted, nearly as long as the peduncles, subtended by two 3-lobed 
ciliate bractlets : hypanthium glandular-pubescent : sepals linear or linear-spatulate, 6 mm. 
long, whitish, reflexed and recurved, the edges hyaline, obtuse : petals lanceolate, 1.5 mm. 
long, white, obtuse with lateral teeth and one or two nerves: stamens conspicuous, 7 mm. 
long, erect: filaments villous: berry globose, 6-8 mm. in diameter, crowned by the per- 
sistent stamens. 
In dry or stony soil, Georgia and Alabama. 
2. Ribes gracile Michx. A rather rigid shrub, 1-1.5 m. tall, armed with slender 
spines, the shoots sometimes densely clothed with prickles, the bark reddish or purplish. 
Leaf-blades 2-4 cm. broad (often larger on the shoots), more or less pubescent, 3-5-lobed, 
the lobes rounded, toothed, the teeth obtuse or rarely acute ; petioles villous, shorter 
than the blades: peduncles usually 3-flowered, about as long as the pedicels: bracts ovate, 
glandular-ciliate : hypanthium glabrous: sepals linear-spatulate, 24-3 times longer than 
the hypanthium : petals obovate or spatulate, about 2 mm. long: filaments pubescent : 
style exserted : berries globose, 1-1.5 cm. in diameter. 
In dry or rocky soil, Illinois to Kansas, Tennessee, Louisiana and Texas. 
.. 9. Ribes rotundifdlium Michx. A straggling shrub, 1-2 m. tall, clothed with a red- 
dish or purple bark, the spines 5-10 mm. long, the young shoots without prickles. Leaf- 
blades 2-3.5 cm. in diameter, glabrate or finely pubescent, especially on the nerves be- 
neath, 3-5-lobed, toothed ; petioles slender, more or less villous, much shorter than the 
blades: peduncles mostly 1-2-flowered, longer than the pedicels: hypanthium glabrous: 
sepals linear-spatulate, obtuse : petals cuneate, 1.5-2 mm. long, undulate, at length 
crisped : filaments glabrous: berries globose, 8-10 mm. in diameter, reddish purple. 
In rocky woods, on or near the mountains, Massachusetts to New York and North Carolina. 
..*. Ribes Missouriénse Nutt. A spreading shrub, with short branches clothed 
with a gray shreddy bark, the spines stout, 8-15 mm. long, young shoots with numerous 
prickles. Leaf-blades 2-6 cm. in diameter, more or less pubescent, especially when young ; 
petioles stout, usually shorter than the blades : hypanthium glabrous: sepals narrowly ob- 
long or oblong-spatulate : petals cuneate, 2-2.5 mm. long: filaments glabrous : berries 
10-15 mm. in diameter, purple. 
In thickets and on river banks, Pennsylvania to Minnesota, South Dakota, Kansas and Tennessee. 
_ 9. Ribes Cynósbati L. A straggling shrub, 1-2 m. tall, with spine-armed and often 
prickly stems. Leaf-blades 3-5 cm. in diameter, pubescent when young, mostly glabrate 
1n age, 3-5-lobed, the lobes rounded or the terminal one acute, crenate ; petioles somewhat 
shorter than the blades, villous with simple or glandular hairs: peduncles and pedicels of 
about the same length: bracts suborbicular, glandular-toothed : hypanthium glabrous : 
sepals oblong, ‘obtuse: petals minute, reniform, about 0.5 mm. high: filaments subulate, 
about j as long as the anthers : berries globose, about 1-1.5 em. in diameter, armed with 
stout prickles. 
In rocky woods and on hillsides, New Brunswick to Manitoba, Alabama and Missouri. DoGBERRY. 
6. Ribes resinósum Pursh. A shrub about 1 m. tall, with clammy glandular-pube- 
scent foliage and inflorescence. Leaf-blades thickish, 3—5-lobed, cordate at the base, thelobes . 
rounded or obtuse, crenate toothed ; petioles stout, shorter than the blades, furnished with 
broad stipules which are early deciduous : racemes ascending, many-flowered : bracts ob- 
long: flowers short-pediceled. 
In woods, southern Alleghenies, probably in North Carolina. Not recently collected. 
. , 7. Ribes prostratum L’Her. A low shrub, with spreading decumbent stems, the 
inflorescence glandular-pubescent. Leaf-blades 5-12 cm. broad, sparingly pubescent when 
young, finally glabrate, ciliate, dark green above, paler beneath, cordate, angularly 5- 
lobed, the m acute, serrate or serrate-crenate ; petioles finely pubescent, often about as 
long as the blades, the dilated stipules fringed : racemes 6-14 cm. long, spreading, long- 
peduncled : pedicels 5-10 mm. long, subtended by ovate bracts 1-1.5 mm. long : hypan- 
thium bristly and densely glandular-pubescent: sepals rhomboidal-obovate, sometimes 
