Tas. 7152. 
THALICTRUM Datavayt. 
Native of Yunan. 
Nat. Ord. Ranuncunacez.—Tribe ANEMONES. 
Genus Tuaxiorrum, Linn. ; (Benth. et Hook. f. Gen. Pl. vol. i, p. 4.) 
a 
THALICTRUM (Physocarpum) Delavayi; gracillimum, ramosum, gla berrimum, 
foliis latis laxe ternatim decompositis, ramulis rigidis ultimis filiformibus 
3-5-foliolatis, stipellis nullis, foliolis breviter petiolalatis suborbicn- 
laribus 3~4-crenatis-lobulatisve basi rotundatis v. subcordatis, panicula 
pauci-laxiflora, flotibus magnis longe pedicellatis cernuis pallide pur- 
pureis, sepalis ellipticis obtusis, filamentis gracilibus glabris, acheniis 
basi angulatis sed vix stipitatis dimidiato-ovatis recurvis compressis 
membranaceis costatis glabris, costis parallelis non reticulatis, stigmate 
oblongo sessili, stylo nullo. 
T. Delavayi, Franchet in Bull. Soc. Bot. Fr. vol. xxxiii. p. 367; Plant. 
Delavay. vol. i. p. 10, t. 2, 3. 
No better example of representative species could be 
found than those of Thalictrum Chelidonii of the Himalaya 
and T. Delavayi of Eastern China. Franchet, the author 
of the last named, says of it, “ Toutes les affinités de 7. 
Delavayi sont avec le 7. Chelidonti,” and he proceeds to 
distinguish the former by its stipellate partial petioles and 
the parallel not anastomozing ribs of the fruit. Much 
More conspicuous characters are the slender stipes of the 
achene and the long slender style of T. Chelidonti, as com- 
pared with the narrowed base of the achene and sessile 
oblong stigma of O. Delavayi. Franchet describes three 
Varieties of this plant: the first, which may be considered 
the normal, is a. decorum, that here figured; the second, 
B. acuminatwm, is much stouter, with leaflets two-thirds to 
_ three-quarters of an inch broad, broader multifid persistent 
Stipules, and long acuminate sepals. The third, y. parvi- 
Horum, is that on which the species was founded (though 
Rot to be regarded as its typical form) ; it has a narrow 
-Many-flowered panicle, sepals only one-fourth to one- 
third of an inch long, and minute caducous stipella. 
_ 1. Delavayi is a native of the mountains of Yunan at 
elevations of four thousand to six thousand feet. The 
Decemper Ist, 1890. 
