Part 1, 1914J CARDUACEAE : HELENIEAE 3 



obtusish tips. Achenes oblong, 10-ridged, glabrous. Pappus wanting, represented by a 

 callous margin. 



Type species, Coinogyne carnosa Less. 



1. Coinogyne carnosa Less. Linnaea 6: 521. 1831. 



Jaumea carnosa A. Gray, in Torr. U. S. Expl. Exp. 17: 360. 1874. 



A perennial, with a creeping rootstock; stem procumbent or ascending, glabrous, striate; 



leaves fleshy, decussately opposite, linear-oblanceolate, 2-4 cm. long, 2-5 mm. wide, sessile, 



connate at the base; involucre about 1.5 cm. high and 1 cm. broad; bracts oval, rounded 



at the apex, successively shorter; ligules yellow, 6-7 mm. long. 1 mm. wide; achenes oblong, 



3 mm. long. 



Type locality: California. 



Distribution: Ocean beaches from Puget Sound, Washington, to San Diego, California. 



2. ESPEJOA DC. Prodr. 5: 660. 1836. 



Erect dichotomously branched herbs with entire opposite leaves. Heads discoid, peduncled, 

 solitary in the forks. Involucre hemispheric; bracts 8-12, in 4 series, herbaceous, broad, 

 striate. Receptacle alveolate. Flowers fertile; corollas glabrous with slightly pubescent 

 lobes; tube short and swollen at the base; throat funnelform; teeth lanceolate. Anthers 

 linear, slightly cordate at the base and with lanceolate tips. Style-branches sparingly 

 hispidulous, with obtuse tips. Achenes cuneate, somewhat dorso-ventrally compressed, 

 pubescent, truncate at the apex. Pappus of about 16 ovate-oblong, 1 -nerved, mucronate 

 squamellae. 



Type species, Espejoa mexicana DC. 



1. Espejoa mexicana DC. Prodr. 5: 660. 1836. 



Jaumea mexicana Benth. & Hook.; Hemsl. Biol. Centr. Am. Bot. 2: 209. 1881. 



A dichotomously branched herb; stem glabrous or sparingly pilose above, somewhat 

 angled; leaves sessile, opposite, elliptic, rounded at the base, acute at the apex, entire, 

 glabrous, pinnately veined; peduncles 5-8 cm. long; bracts ovate or oval, striate, im- 

 bricate, successively shorter; achenes elongate, cuneate, reddish-sericeous; pappus-squamellae 

 ovate, serrulate on the margin. 



Type locality: San Dionisio [Oaxaca?]. 

 Distribution: Mexico to Nicaragua and Costa Rica. 

 Illustration: Deless. Ic. Sel. 4: pi. 41. 



3. CHAETYMENIA H. & A. Bot. Beech. Voy. 298. 1837. 



More or less shrubby plants with narrow, entire, opposite leaves. Heads long-peduncled, 

 radiate, many-flowered. Involucre broadly turbinate-cmpanulate; bracts broad, rather 

 firm, striate, imbricate in 3-4 series, ovate. Receptacle naked, alveolate. Ray-flowers 

 in a single series; ligules broad, many-nerved, 3-lobed. Disk-flowers very numerous; 

 corollas glabrous or nearly so, tubular, scarcely at all dilated at the throat, not dilated at the 

 base, deeply 5-lobed. Achenes linear- oblong. 5-angled, pilose. Pappus of about 20 rigid 

 plumose bristles, somewhat dilated-paleaceous and serrate at the base. 



Type species, Chaetynienia peduncularis H. & A. 



1. Chaetymenia peduncularis H. & A. Bot. Beech. Voy. 298. 1837. 



Jaumea peduncularis Benth. & Hook.; Oliver, Fl. Trop. Afr. 3: 395. 1877. 



A somewhat shrubby and branched plant; stem striate, glabrous and somewhat purplish 

 above ; leaves opposite, sessile, linear-lanceolate, glabrous, firm, with rather prominent midrib, 

 5-10 cm. long, 5-15 mm. broad, tapering at each end; peduncles 1-2.5 dm. long, purplish; 

 involucre 2-2.5 cm. high and about as broad; bracts broadly ovate, striate, often tinged with 

 purple; ligules about 15, broadly obovate-cuneate, 3-lobed, many-nerved, about 1 cm. long and 



