206 NORTH AMERICAN FLORA [VoLUME 22 
34. Ribes tortuosum Benth. Bot. Voy. Sulph. 17. 1844. 
Ribes Palmeri Vasey & Rose, Proc. U. S. Nat. Mus. 11: 529, 1889. 
A much-branched unarmed shrub, 1.2 m. high or less, the young shoots and petioles 
whitish-puberulent, the flowers unfolding before the leaves. Leaves glandular, nearly 
orbicular in outline, thin, 1.5-3 cm. broad, cordate or subcordate at the base, slightly 
5-lobed, finely puberulent on both sides, the lobes rounded, irregularly crenate; racemes 
1-2 cm. long, 8-12-flowered, the peduncle short, stiff; pedicels divaricate, stiff, about 2 
mm. long, as long as the bracts; hypanthium cylindric, glabrous, or sparingly glandular- 
hairy, 2-4 mm. long, longer than the oblong to obovate, reflexed-spreading sepals; petals 
ovate, minute, much shorter than the sepals, barely 1 mm. long, equaling the stamens; 
ovary glandular-pubescent ; berry red, smooth, 6-8 mm. in diameter. 
TYPE LOCALITY: San Quentin, Lower California. 
DISTRIBUTION: Lower California. 
35. Ribes americanum Mill. Gard. Dict. ed. 8. no. 4. 1768. 
Ribes Dillenii Medic. Beobacht. 1782: 396. 1783. 
Ribes floridum 1, Her. Stirp. Nov. 4. 1785. 
Ribes nigrum pennsylvanicum Marsh. Arbust. 132. 1785. 
Ribes americanum nigrum Moench, Verz. Ausl. Baume 104. 1785. 
Ribes pennsylvanicum Lam. Encyc. 3: 49, 1789. 
Ribes campanulatum Moench, Meth. 683. 1795. 
Ribes recurvatum Michx. Fl. Bor. Am. 1: 109. 1803. 
Coreosma florida Spach, Ann. Sci. Nat. II. 4: 22. 1835. 
Ribes floridum grandifiorum Loud. Arb. 986. 1836. 
Ribes foridum parvifiorum Loud. Arb. 986. 1836. 
An unarmed shrub, 1-1.5 m. high, the stems erect or nearly so, the young shoots some- 
what pubescent and glandular-dotted. Leaves snborbicular or reniform-orbicular in out- 
line, or some of the upper ones ovate, thin, cordate at base with a widely open sinus, or sub- 
truncate, 3-8 cm. wide, 3-5-lobed, glabrous above when mature, more or less pubescent, at 
least on the veins, and glandular-dotted beneath, the lobes acute, or sometimes obtuse, ser- 
rate-dentate, the slender petioles more or less pubescent, often long-ciliate toward the base; 
racemes drooping, as long as the leaves or shorter, pubescent, several-flowered, the axis 
flexuous; pedicels 4-7 mm. long; bracts linear to linear-lanceolate, acute, persistent, longer 
than the pedicels or sometimes shorter; ovary glabrous; hypanthium yellowish-green to 
greenish-white, sparingly pubescent, 3-4 mm. long, urceolate-cylindric; sepals of the same 
color, pubescent, obtuse, a little longer than the hypanthium; petals oblong, colored like 
the sepals, and about two thirds as long, about as long asthe stamens; fruit black, smooth, 
6-10 mm, in diameter. 
TYPE LOCALITY : Pennsylvania. 
DISTRIBUTION: Nova Scotia to Virginia, Nebraska, Wyoming, Montana, Alberta, and Assini- 
poia; also in New Mexico. 
ILLUSTRATIONS: Dill. Hort. Elth. p/. 244, f 315; Guimp. Otto & Hayne, Abb. Holz. fi. 7; 
Moench, Joc. cit. pl, 6; Mém. Soc. Genéve 3?: pl. 2, f. 22; Loud. Arb. f. 735 ; Britt. & Brown, Iil. 
Fl. 7. 1874; Card, Bush Fruits (, 107; Mém. Soc. Gen@ve 353: f. 81. 
36. Ribes Nelsoni Coville & Rose, in Rose, Contr. U. S. Nat. 
Herb. 8: 297. 1905. 
Ribes floridum puberulum Janez, Mém. Soc. Genéve 35: 352. 1907. 
Similar to R, americanum, unarmed, 1-2 m. high. Foliage abundantly dotted 
with large sessile golden-yellow glands; leaf-blades reniform-orbicular, 6 cm. wide or less, 
3-5-lobed, the lobes acute, serrate-dentate; petioles pubescent and glandular; racemes 
drooping, 6-10-flowered, the linear-oblanceolate bracts longer than the pedicels, abun- 
dantly glandular-dotted on the lower side; ovary glabrous, or with a few scattered hairs 
when young; hypanthium cylindric-urceolate, canary-yellow, pubescent, about 4 mm. long; 
sepals obtuse, 5-6 mm. long, canary-yellow, pubescent ; petals oblong, obtuse, yellow, some- 
what shorter than the sepals and longer than the stamens, 
TYPE LOCALITY : Colonia Garcia, Chihuahua, Mexico. 
DISTRIBUTION : Type locality and vicinity. 
