150 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
and especially by its much more slender, more truly scarlet flowers with their short, 
closely appressed sepals. 
EXPLANATION OF PLATE 12.—Aquilegia elegantula Greene. From Payson 13, Black Canyon of the 
Gunnison River, Colorado. One-helf natural size. 
16. Aquilegia skinneri Hook. in Curtis’s Bot. Mag. 68: pl. 3919. 1842. 
Aquilegia mexicana Hook. in Curtis’s Bot. Mag. 68: pl. $919, 1842. 
Aquilegia madrensis Rose, Contr. U. S. Nat. Herb. 12: 265. 1909. 
Stems 60 to 100 cm. high; basal leaves long-petioled, triternate, the leaflets on 
slender petiolules or sessile, relatively small, the lobes rounded, more or less pubes- 
cent beneath; flowers 5.5 to 7 cm, long, 3.5 to 4 cm. across, nodding; sepals greenish 
yellow, lanceolate, acuminate, 18 to 24 mm. long, more or less spreading, exceeding 
the lamine by 7 to 10 mm.; lamin yellowish, truncate or rounded, 8 to 10 mm. 
long; spurs pale red, straight, uniformly or abruptly tapering from base to apex, 
3.5 to 5 cm, long; styles, in fruit, 18 to 20 mm. long; ovaries pubescent; follicles about 
3 cm. long, the tips slightly spreading. 
TYPE Locauity: ‘In the mountains of Guatemala.” 
RANGE: In the Sierra Madre of northern Mexico. 
REFERENCES: 8. Wats. Gard. & For. 1:31. 1888. Davis, Minn. Bot. Stud, 2: 339. 
1899. 
SPECIMENS EXAMINED. 
Mexico: Sierra Madre, Chihuahua, Pringle 1182. West of Bolafios, Jalisco, Rose 
2954. Guanacevi, Durango, Nelson 4762. Colonia Garcfa, Chihuahua, Town- 
send & Barber 78. Southwestern Chihuahua, Palmer 336. Largo Canyon, Chi- 
huahua, Jones. 
Aquilegia skinneri is the longest spurred as well as the southernmost known species 
of the section Rhodanthae, and is of peculiar appearance because of its light greenish 
sepals and lamin and its pale red spurs. It has been introduced into cultivation 
to some extent and is a beautiful plant. 
The above description was based on specimens collected in northern Mexico. 
These, according to Dr. J. N. Rose, should be called .A. madrensis, which, he says, 
“must be distinct, judging from the descriptions and colored figure of that species’’ 
(skinneri). According to Dr. Rose the plants from northern Mexico differ from A. 
skinneri (as described and illustrated) in their taller stature, pubescent stems and 
leaves, broader sepals, different leaf segments, and paler flowers. However, it is 
better to retain the name A. skinneri for the plants of northern Mexico for the present 
at least, since it seems probable that the type came from Chihuahua instead of Guate- 
mala, and that labels were mixed in England. Neither can the characters by which 
A. madrensis was separated from A. skinneri be considered specific in this genus. 
17. Aquilegia jonesii Parry, Amer. Nat. 8: 211. 1874. 
Densely tufted and cespitose, the stems very short or wanting; leaves tufted at 
apex of branches of rootstock, 3 to 6 cm. high, biternate, the primary divisions with 
very short, if any, partial petioles, the leaflets sessile or confluent at base, much 
congested, thick, pubescent on both surfaces, deeply divided into 3 or 4 entire, nar- 
rowly oblong, obtuse segments; flowers erect, solitary, borne on naked, softly pubes- 
cent scapes 3 to 8 cm. long, exceeding the leaves; sepals blue, oblong, obtuse, equal- 
ing or exceeding the spurs and twice the length of laminse and head of stamens; 
lamin blue; spurs gradually tapering, straightish; styles about 1 cm, long; ovaries 
smooth; follicles 5, 2 to 2.5 cm. long, the tips slightly spreading. 
Tyre Locauity: Phlox Mountain, northern Wyoming. 
Rance: Alpine in the mountains of northern Wyoming, Montana, and adjacent 
Canada. 
REFERENCES: Rose, Bot. Gaz.15: 63. 1890. Jones, Zoe 4: 258. 1893. Robinson, 
Syn. Fl. 1: 43. 1895. Rydb. Contr, U. S. Nat. Herb. 3: 482. 1896. Davis, Minn. 
Bot. Stud. 2: 335. 1899. Rydb. Mem. N. Y. Bot. Gard. 1: 154. 1900. 
