85 
InvVolucral leaves close up to the calyx 
and composed of 3 sepal-like leaves 44. Hepatica. 
Involucre cyathiform, Reiaichys lobed, 
close up to the calyx - 45. Barneoudia. 
Tribe VI. CLEMATIDEAE 
Sepals half imbricate and half induplicate 
—valvate or wholly imbricate; 
stems subsimple from a rhizome - 46. Clematopsis. 
Sepals induplicate-valvate : 
Leaves variously compound or entire, 
none of the leaflets ever tendrili- 
otal when oe rome: stami- 
nodal - 47. Clematis. 
Leaves iilokslats: the dersiiitia! leaflet 
tendriliform and 3-pronged ; petals 
linear or spathulate, sharply differ- 
entiated from the stamens - 48. Naravelia. 
Enumeration of Ranunculaceae showing the distribution and 
type species* of each genus and useful taxonomic literature.t 
Only those generic synonyms are included which are additional 
to the Genera Plantarum. 
Tribe I.—PAEONIEAE. 
1. Paeonia Linn.—about 35 species in the North Temperate 
Zone; absent from Eastern North America; type species 
P. officinalis. For critical determinations of sce carried 
out by Dr. Stapf, see Herb. Kew. For East Asian spp. 
see Finet & Gagnep. in Bull. Soc. Bot. Fr. in ; 523-527 
(1904). 
Tribe [1—HELLEBOREAE, 
2. Trollius Linn.—about 20 species in North Temperate Zone ; 
type species T'. europaeus, Europe; genus ascends to 
11000 ft. in Yunnan (7'. patulus), to 12000 ft. in Szechuan 
(7. ranunculoides) to 14000 ft. in the N.W. Himalaya 
(7. acaulis) and to 14000 ft. in Sikkim (7. pumilus). For 
East Asian spp. see Finet & Gagnep. in Bull. Soc. Bot. 
Fr. 51: 393-396 (1904). 
3. Asteropyrum Drumm. et Hutchinson in Kew Bull. 1920: 
155, fig. 1——-Isp., A. peltatum, Western China. 
* For rules relat ating to the selection of type species see Science, n.s., 
53: 312-314 (1921). 
Only such literature as the writer has met with in his work is quoted 
under each genus; no selection and no attempt at a complete bibliography 
has been made. 
