Ribes L.

1. Ribes L. View in CoL 1

Small or medium-sized shrubs. Leaves palmately 3- or 5-lobed. Receptacle pelviform or nearly flat. Petals small, often greenish. R. aureumPursh, Fl. Amer. Sept. 1:164 (1814), with bright yellow flowers and glabrous foliage, and R. sanguineum Pursh , loc. cit. (1814), with conspicuous, red or pink flowers in spring, both native to W. North America, are often cultivated and are partly naturalized in parts of C. Europe.

Literature: E. de Janczewski, Mém. Soc. Phys. Genève 35: 199 (1907).

1 Flowers in axillary clusters of 1 -3

2 Leaves usually more than 20 mm wide; spines usually present; bracteoles present 6. uva-crispa

2 Leaves rarely 15 mm wide; spines absent; bracteoles absent

7. sardoum 1 Flowers in racemes 3 Functionally dioecious; bracts 4-10 mm; leaves not more than

6 cm wide; axis of inflorescence glandular-hairy 4 Budsovoid,obtuse;fruitglandular-hairy 9. orientale 4 Buds elongate, acute; fruit glabrous 8. alpinum 3 Flowers hermaphrodite; bracts 1-2 mm; larger leaves 7-

15 cm wide; axis of inflorescence without glandular hairs 5 Leaves covered beneath with sessile, aromatic glands 5. nigrum 5 Leaveswithoutsessileglands 6 Sepalsciliate;leavesupto 15 cmwide 4. petraeum 6 Sepalsnot(orverysparsely)ciliate;leaves6- 10cmwide 7 Sepals ligulate, deflexed 1. inultiflorum 7 Sepals obovate or spathulate, erect or patent

8 Receptacle nearly flat, with a raised ring; anther-lobes widely separated 2. rubrum

8 Receptacle basin-shaped, without a raised ring; antherlobes contiguous on inner side 3. spicatum