MACLOSKIE : RANUNCULACE^E. 



399 



1. Caltha, p. 399. 



2. Anemone, p. 400. 



3. Clematis, p. 401. 



KEY TO THE GENERA. 

 A. Perianth single, its leaves petaloid. 



b. Fruit consisting of several follicles, each several-seeded. 

 b2. Fruit consisting of many i -seeded achenes. 



c. Leaves alternate, but a 3 -leaved involucre on the scape. 

 c2. Leaves opposite, and with no involucre. 

 A2. Perianth usually double ; its petals with a nectariferous pit below. 

 b. Hermaphrodite. 



c. Minute annuals with linear leaves, and spurred sepals. Achenes in a spike. Scapes 



I -flowered. 4. Myosurus, p. 402. 



c2. Stouter herbs, with spurless sepals, and mostly cymose flowers. Achenes in a head. 



d. Fruit with soft pericarp. 5. OxygrapJiis, p. 403. 



d2. Fruit with firm or hard pericarp. 6. Ranunculus, p. 404. 



l>2. Dioecious, i -flowered male-scapes, and. 2-flowered female-scapes. Achenes in a head. 



7. Hamadryas, p. 413. 



i. CALTHA Linn. Marsh-marigold. 



Leaves entire or crenate, mostly cordate. Sepals large, petaloid. Petals 

 none. Follicles several or few, not united, with ovules on the ventral 

 suture. 



Species 10, in cold and temperate climates. 



KEY TO THE SPECIES. 



A. Leaves trifid, the intermediate division 2-lobed. appendiculata. 



A2. Leaves entire. 



b. Leaf-margins ciliate. dioneafolia. 



b2. Leaves ovate-sagittate. sagittata. 



i. C. APPENDICULATA Pers. (DC. sub Psychrophila}. 



Cespitose, dioecious. Sepals 5, with a long, 

 apical appendage, marcescent. Scape i -flow- 

 ered, very short, naked. Leaves radical, suc- 

 culent, trifid, cuneiform. Stamens few. Fol- 

 licles 5-9. 



S. Patagon.; Magellan; Fuegia; alpine. 



FIG. 66. 



2. 



C. DIONE^FOLIA Hook. f. 



Leaves resembling in shape those of Dioncea 

 muscipula. 



Stamens 5-7. Follicles only 2-3. 



"In green bosses upon which the stellate 

 flowers have a very pretty appearance" (Fig. 66). 



Common in South parts of Fuegia and E naturalsize ; also magnified leaf and 

 . -, T , .. magnified flower. (After Flora an- 



and W. Magellan ; S. Staaten I. 



Caltha dionecefolia. Branch, about 



