House: North American Convolvulaceae 317 



Cuba: Pinar del Rio, C. Wright, Sept. 1865 (no. j/oj) ; type 

 in the herbarium of the New York Botanical Garden. 



Differs from the South American species, E. incanus Pers., to 

 which it has been referred, by the relatively shorter and broader 

 leaf-blades, the small linear sepals, the much smaller corolla, and 

 the more silky pubescence. 



Evolvulus Palmeri sp. nov. 



* 



Perennial ; silky-pubescent, branching from a woody base ; the 

 branches herbaceous, spreading or ascending, 5-15 cm. long; 

 leaf-blades ascending, sessile, very small, narrowly lanceolate, 

 4—6 mm. long, 1 — 1.5 mm. broad, the apex acuminate-cuspidate, 

 the base acute, densely pubescent beneath with silvery appressed 

 hairs, less so above ; flowers in the axils of the upper reduced 

 leaves, the uppermost becoming bract-like ; pedicels short, 2-3 

 mm. long or less ; sepals linear-lanceolate, 3-4 mm. long. 



Mexico : Durango, Dr. Edward Palmer, 1896 (no. 20S); type 

 in the United States National Herbarium. 



The corolla of this distinct species has not been seen, but its 

 other characters are so different from any other Mexican species 

 that it seems best to describe it as new. Of the only two species 

 of doubtful identity to which this might be referred, E. microphyl- 

 Ins Mart. & Gal. is excluded by 4< pedunculis unifloris bibracte- 

 olatis, folio 3-4-plo longioribus," and E. albiflorits Mart. & Gal. 

 by u pedunculis folio superantibus ; folia subpollicares." 



Evolvulus adscendens sp. nov. 



Annual ; extensively branching from a thickened base ; stems 

 ascending, 30-50 cm. tall, pilose above with very fine spreading 

 hairs ; leaves sparingly hirsute on both surfaces; petioles 1-2 mm. 

 long; leaf-blades broadly ovate, 1.5-2.5 cm. long, the lower 

 ones rounded at the base, obtuse or rounded at the apex, the 

 upper ones reduced in size, becoming bract-like, elliptical or 

 oblong-ovate, obtuse or acute ; the inflorescence paniculate ; 

 peduncles as long as the leaves or the upper much exceeding the 

 leaves, filiform, 1- or 2-flowered, 1-2 cm. long, less pubescent 

 than the stems ; bracts subulate, 1-2 mm. long, the pedicels 2-3 

 mm. long; sepals ovate-lanceolate, acuminate, pubescent, 2-2.5 

 mm. long; corolla blue, 4-5 mm. broad, the margin 5 -angled ; 

 capsules globose, deflexed when mature, not exceeding the calyx, 

 4-valved, 4-seeded ; seeds dark crimson. 



