246 

 SPILANTHES Linn. 

 Spilanthes ovata Merrill Bp, nov. 



An ereci or spreading Blightly branched, nearly glabrous herb with 

 opposite, short, broadly-ovate to triangular-ovate, irregularly and rather 

 coarsely crenate-dentate acute leaves and solitary long peduncled radiate 

 heads about l."> em. in diameter. Branches purplish, somewhat angled or 



channeled, glabrous or sparingly pubescent. Leaves membranous or sub- 

 membranous, 2.5 cm. long or less, 1.'2 to 1.8 em. wide, the base broad, 

 truncate or slightly cordate, 3-nerved, paler beneath, the margins thick- 

 ened, usually somewhat eiliate, the nerves rather prominent beneath, often 

 with few scattered hairs, the reticulations distinct; petioles 3 to 1 nun. 

 long. Peduncles about 7 em. long. Heads yellow; involucral bracts 

 sub 2-seriate, oblong-lanceolate, acute or acuminate, about 5 mm. long, 

 the margins eiliate. Ray flowers about 10, the tube eiliate, about 2 mm. 

 long, the ligule oblong-ovate. 10 mm. long. I mm. wide, 10-nerved, 

 truncate. 3-toothed at the apex, the teeth short, rounded. Disk llowers 

 tubular, the corolla 5-toothed, the teeth about 0.8 nun. long, acute. 

 Anthers about 1 mm. long, the cells acute at the base. Style arms nearly 

 1 mm. long, truncate. Achenes 2 mm. long, flattened, 2-keeled, eiliate 

 on the keels ; pappus of 'I slender, seabrid. 1 mm. long bristles, the achenes 

 of the ray flowers triquetrous. Pales 1 to ."> mm. long, keeled, or the 

 inner ones flat or nearly so, 3-nerved, obtuse, irregularly minutely toothed 

 at the apex, the keel minutely seabrid. 



U-zon. District of Lcpanto. Mount Data (4573 Merrill) November 4, 1905. 

 Rather common on dry grassy slopes in thin pine forests at about 2,100 in. 



A species apparently closely related to Spiltnit hex i/i <ni<liflota Tine/., differing 

 from that species in its much shorter, very differently shaped leaves. 



