TWO SPECIES OF AQUILEGIA FROM THE UPPER 

 SONORAN ZONE OF COLORADO AND UTAH. 



BY ALICE EASTWOOD. 



With Plates xviii and xix. 



Aquilegia micrantha n. sp. Perennial; lower part 

 of stem and leaves unknown; upper part villous with 

 white hairs, viscid especially between the rounded irreg- 

 ular ribs ; leaves triternate : petioles equaling or surpass- 

 ing in length the rest of the leaf, very viscid and clothed 

 with long white hairs which are most numerous on the 

 edge, strongly ribbed, dilated at base, spreading into 

 sheathing membranous undulate, stipule -like margins, 

 which are very viscid and villous; upper leaves almost 

 sessile ; upper petiolules longer than the two lateral 

 and with larger leaflets; leaflets cuneate, 3 -cleft or 

 divided irregularly, with rounded obtuse or acute lobes, 

 somewhat revolute on the margins; under side more vis- 

 cid and hairy than the upper and with veins more distinct; 

 flower about 2 cm. across, cream-white; sepals 10 mm. 

 long, 4 mm. broad with a short broad claw, ovate, acute, 

 somewhat hairy and viscid on the back; petals with 

 spurs straight or curved, varying in length, upper part 

 truncate or slightly refuse about 7 mm. long and 5 mm. 

 broad; stamens numerous with filaments of different 

 lengths; anthers about i mm. long; united staminodia 

 surpassing the petals; styles surpassing the stamens, 

 curved at apex; fruit of four or five follicles about 15 mm. 

 long without the styles which are about the same length, 

 with strong veins branching downwards from the mid- 

 nerve, somewhat viscid and villous; seeds glossy black. 



The type is fragmentary and was sent to me by Mr. 

 Alfred Wetherill of Mancos, Colorado. He reports it as 

 abundant in the canons of the San Juan River in south- 



2d Ser., Vol. IV. ( 37 ) March 19, 1895. 



