318 ROBINSON. 



Magdalen a: open places, clearings and ridges. Sierra del Libano near 

 Santa Marta, alt. 1830 m., H. H. Smith, no. 1994 (Gr., U. S.); San Sebastian 

 near Santa Marta, Fvnck, no. 524 (K.), immature and doubtful. 



[Ecuador.] 



The specimens comprising the sheet of Smith's no. 1994 in the U. S. 

 National Museum show considerable variation in the leaf-contour, 

 the basal sinus being deeper and narrower and the teeth more rounded 

 in portions of this material than in any other seen. The identity in 

 the pubescence, floral characters, etc., indicates that this is indi\idual 

 variation rather than the mixing of species. 



77. E. Apollinairei Robinson. Stems terete, flexuous as if 

 weakly scandent, closely covered with short spreading stipitate glands; 

 internodes 1-1.5 dm. or more long; leaves opposite, petiolate, deltoid- 

 suborbicular, bluntly short-acuminate, deeply cordate by a narrow 

 sinus, coarsely crenate, 5-9-nerved, green and smoothish above, 

 slightly paler and glandular-tomentose on the veins beneath, 7-13 cm. 

 long and broad; petioles 3.5-7 cm. long, densely glandular-tomentose; 

 heads about 58-flowered, slender-pedicelled, 7-10 mm. high, in long- 

 peduncled moderately convex many-headed compound corymbs 

 (1 dm. or more in diameter); involucre campanulate; scales about 

 24, subequal, lance-linear, attenuate, becoming stramineous, dorsally 

 pubescent, the hairs both jointed and gland-tipped; corollas white, 

 pubescent externally on the limb; the slender proper tube about 

 equalling the enlarged cylindric throat; achenes 2 mm. long, hispid 

 on the angles. — Proc. Am. A<?ad. liv. 236 (191S). 



Cundinamarca: near Bogota, alt. 2700 m., Bros. AimUinaire & Arthur, 

 no. 94 (Gr., U. S.), in mountains near Bogotd, Holton, no. 312 (X. Y.). 

 Without locality: Triana, no. 22 (Cr.). 



Sect. IV. Praxelis (Cass.) Benth. Involucre campanulate- or 

 turbinate-subcylindric; the scales mostly acute, imbricated in 3^ 

 graded series, deciduous before the florets loosen from the receptacle. 

 Summit of the peduncle cylindrical, exhibiting after the fall of the 

 involucral scales depressed scars mostly rhombic in form. Receptacle 

 moderately convex to conical, glabrous. — Benth. ace. to Bak. in 

 Mart. Fl. Bras. vi. pt. 2, 241 (1876); Hoftm. in Engl. & Prantl. Nat. 

 Pflanzenf. iv. Abt. 5, 140 (1890). Praxelis Cass. Diet, xliii. 261 (1826). 

 OocUnium DC. Prod. \. 133 (1836). — Weedlike annuals of somewhat 

 characteristic habit, mostly decumbent and usually seto.se, the 

 heads few, singly terminating what for the genus are unusually long 

 peduncles. 



