146 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
SPECIMENS EXAMINED. 
CALIFORNIA: Near Hullville, on the ridge between Eel River and Rice Creek, Lake 
County, Heller 6014. Crystal Springs Lake, San Mateo County, Elmer 4952, 4271. 
San Anselmo Canyon, Marin County, Eastwood. On San Carlos, Brewer 773. 
“Southeast California,’ Palmer. 
This Californian species of peculiar aspect is related most closely to A. formosa 
truncata, but seems to be quite distinct. It is very different in appearance from any 
other American Aquilegia, and when once seen it is not to be confused with the closely 
related species. The broad orifices of the spurs with the obsolete lamine, the long 
stamens and styles, and the distinctly triternate leaves are its most distinctive 
peculiarities. 
EXPLANATION OF PLATE 11.—Aquilegia tracyi Jepson. From the specimen collected by Miss Alice 
Eastwood in San Anselmo Canyon. One-half natural size. 
10. Aquilegia lithophila sp. nov. 
Stems tufted, more or less irregularly ribbed, decidedly viscid throughout, 30 to 40 
em. high; leaves biternate, the petioles and petiolules viscid-pubescent; lateral 
leaflets sessile or short-petioluled, the terminal ones on slender petiolules about 1.5 
em. long, rather broad (in type specimen suborbicular, 3 to 4 cm. across), more or less 
finely pubescent and viscid, especially beneath, scarcely glaucous, the lobes rounded; 
flowers nodding, 4 to 4.5 cm. long, about 3 cm. across; sepals yellow or tinged with red, 
1.5 to 2 cm. long, spreading; laminz as well as the spurs bright yellow, less than 10 mm. 
long, rounded; spurs nearly 3 cm. long, gradually tapering from a broad base to a slen- 
der apex; ovaries pubescent; styles about 10 mm. long. 
Type in the U.S. National Herbarium, no. 718898, collected in the canyon of the 
Dolores River above Mesa Creek, western Colorado, altitude about 1,500 meters, 
June 11, 1914, by E. B. Payson (no. 406). 
An additional specimen seen is Jones 5298i, from near the head of Pahria Canyon, 
Utah. 
An interesting and little known plant, collected, apparently, only in these two 
localities. The type grew from the crevices of a ledge in the bottom of a small side 
canyon over which trickled a tiny stream and from between whose strata the water 
was oozing. To see the plants in such a place, surrounded by huge sandstone cliffs, 
rocky, sun-baked hills, and a scattering forest of junipers, was a striking novelty to 
one accustomed to associating plants of this genus with the verdant meadows and cool 
groves of the higher mountain regions. 
The sand is still clinging to the under side of the leaflets i in the herbarium specimens, 
giving evidence of a peculiarity shared by two other species of this region found in 
similar habitats, namely, A. ecalcarata and A. pallens. 
11. Aquilegia canadensis L. Sp. Pl. 533. 1753. 
Aquilegia variegata Moench, Meth. Pl. 311. 1794. ‘ 
Aquilegia elegans Salisb. Prodr. Stirp. 374. 1796. 
Aquilegia coccinea Small, Bull. N. Y. Bot. Gard. 1: 280. 1899. 
Aquilegia australis Small, Bull. Torrey Club 25: 466. 1899. 
Aqutlegia latiuscula Greene, Repert. Nov. Sp. Fedde 13: 320. 1914. 
Aquilegia eminens Greene, Repert. Nov. Sp. Fedde 13: 321. 1914. 
Stems 30 to 70 cm. high, frequently pubescent throughout; basal leaves biternate, 
usually rather large, glaucous and often pubescent beneath; flowers 3 to 4 cm. long, 
2 to 3 cm. across, nodding; sepals red, lanceolate, usually acute or acuminate, slightly 
spreading, 15 to 20 mm. long, exceeding the lamine 5 to 9 mm; lamine yellow, 
rounded and more or less truncate at apex, the spurs red, straight, rather stout, about 
20 mm. long, their tips often connivent; styles 12 to 15 mm. long; follicles usually 
5, 2 to 2.5 cm. long, the tips spreading. 
TYPE Locauity: ‘‘ Habitat in Virginia, Canada.”’ 
