118 POLYANDR1A POLYGYNIA. [CI. 13. 



to the base into linear segments. Stem many -flowered. Calyx 

 coloured. 

 Dry groves. If. . 4, 5. About 1 /. slightly downy. Nect. a naked pore. 



6. R. sceleratus, 10. 681. (Water C.) Stem erect, hollow, much 



branched. Leaves smooth ; lower ones palmate ; upper fingered. 

 Fruit oblong. Seeds minute, very numerous. 

 Watery pi. 0.6 — 8. Pale green, and smooth. Stem thick. Fl. small. 



7. R. alpestris, 34. 2390. (Alpine C.) Leaves very smooth ; radical 



ones somewhat heart-shaped, obtuse, in three deep lobed seg- 

 ments ; those of the stem lanceolate, entire. Calyx smooth. 

 Clova Mts., very rare. If. 5. 3 — 6 in. Fl. mostly solitary, white. 



8. R. bulbosus, 8. 515. (Bulbous C. Butter-cups.) Calyx reflexed ; 



its stalk furrowed. Stem upright, many-flowered. Leaves com- 

 pound. Root bulbous. Seeds smooth. 

 Mead, and past. 14.5. 1— H/. L. ternate, S-cleft. Fl. golden yell. 



9. R.hirs&tus, 21, 1504. (Hairy C.) Calyx reflexed, pointed. Stem 



upright, many-flowered, hairy. Leaves ternate. Root fibrous. 

 Seeds tuberculated. 

 Waste and cult, gr, ©.6 — 10. \hf Hairs of the stem spreading. 

 R. parvulus of Linn. Mant. 79", and Fl. Brit. 593, is but a var, 



10. R. repens, 8. 516. (Creeping C.) Calyx spreading. Flower-stalks 



furrowed. Scyons creeping. Leaves compound, cut ; the upper- 

 most entire. 

 Mead, and shady pi. If. 6 — 8. Runners very long. L. dark green. 



11. R. acris, 10. 652. (Upright Meadow C.) Calyx spreading. 



Flower-stalks round and even. Leaves in three deep lobed and 

 cut segments ; those of the uppermost linear and entire. 

 Mead. & past. If . 6, 7. Stein If. erect; hairs close. Fl. bright yell. 



12. R. arvensis, 2. 135. (Corn C.) Seeds very prickly at the sides. 



Leaves once or twice deeply three-cleft, with linear-lanceolate 

 segments. Stem erect, much branched, many-flowered. 

 Fields. 0.6. A very smooth, shining, pale greenherb. Fl. lemon-col. 



13. R. parvifiorus, 2. 120. (Small-flowered C.) Seeds with hooked 



prickles at the sides. Leaves simple, hairy, sharply cut ; upper 

 , ones three-lobed. Stem prostrate. 

 Gravelly fields. . 5, 6. A pale green y hairy herb. Fl. small, yellow. 



14. R. hederdceus, 28. 2003. (Ivy C.) Seeds wrinkled. Leaves round- 



ish-kidney-shaped, with three or five lobes, entire, smooth. Stem 

 creeping. 

 Watery pi. If.. 5—8. Smooth. Fl. small, white. Stam. 5 — 10. 



15. R. aquatilis, 2. 101 . (White Floating C.) Seeds wrinkled. Leaves 



in capillary segments under water ; above somewhat peltate, 

 lobed, bluntly notched. 

 Ditches & ponds. If. 5, 6. Floating. Pet. white, icith yellow claws. 



280. TR6LLIUS. Globe-flower. 



1. T. europceus, 1. 28. (Mountain G.) Petals about fifteen, converg- 

 ing into a globe. Nectaries five to ten, as long as the stamens. 

 Shady mount, sit. If . 5, 6. 2f. L. in many deep, cut lobes. Fl. yell. 



