to lilac, orange, golden-yellow, and white. This latter 
species is, however, abundantly distinguished by the shorter 
filaments and anthers more collected into a head. 
Still another form of Western North American Columbines 
is the A. truncata, Fisch. and Mey. (Regel Sert. Petrop. 
1852, t. 11), retained as a species peculiar to California by 
Watson in the Botany of California (p. 10), (A. eximia, 
Van Houtte in Flor. des Serres, 1857, t. 1188; A. Californica, 
Lindl.), but regarded by others as a variety of formosa. It 
is even nearer to A. canadensis than is A. formosa, having 
short thick spurs and very small sepals and a small limb to 
the petal. I have gathered it in the Wellingtonia Groves 
of the Sierra Nevada. Lastly, there is A. flavescens, Wats. 
from the Rocky Mountains, which appears to me to be 
another form of formosa, with pale golden flowers. At 
fig. B of the accompanying drawing is represented what I 
take to be this latter plant. It is remarkable that in both 
the forms here figured the spurs are twice as long as in any 
of the numerous Herbarium specimens I have examined of 
formosa, truncata, or flavescens, or than they are in any 
other Aquilegia but the forms of A. cwrulea. 
All these Aquilegias are natives of the margins of — 
mountain streams in Western North America, and have 
been introduced into the Royal Gardens at various times, 
flowering in July and August. 
Descr. Stem very slender, one to three feet high, more 
or less glandular, hairy above. Leaves biternate, ultimate 
segments cuneiform, obtusely lobulate and crenate. lowers 
on very slender peduncles, one and a half to two inches 
long, brick-red and yellow or wholly yellow. Sepals 
lanceolate, acuminate, horizontally spreading in the red- 
flowered forms with a golden band down the centre. Petals 
with the limb suborbicular in outline, tip rounded or sub- 
acute, margins rather recurved; spur long or short, some- 
times one and a half inches long, tips scarcely incurved, 
slightly swollen. Filaments far exserted, of very different 
lengths, outer almost twice as long as the inner; anthers 
scattered. Sfyles shorter than the longest stamens.—J. D. H. 
Fig. A, A. formosa and B, var. flavescens—both of the natural size. Fig. A, 
1, section of flower; 2, stamen ; 3, carpel laid open; alZ of A. formosa ; all except 
Al, enlarged. 
