FLORA OF THE GALAPAGOS ISLANDS. 219 



ampliato : limbo breviter 5-dentato albo-puberulo : achenio puberulo 

 coinpresso breviter oblongo apice calvo. — Narborough Isl. : northern 

 part, Snodgrass & Heller, no. 297 (hb. Gr.) ; southern part, common at 

 G50 m. alt., Snodgrass & Heller, no. 341 (hb. Gr.). Endemic. Leaf- 

 blade 6 to 11 cm. long, half as broad, petioles 1 to 1.5 cm. long: heads 

 2 cm. in diameter; ray-flowers including the achene 12 mm. long. This 

 species approaches S. affinis, Hook, f., but differs in its alternate more 

 finely toothed leaves, in the branched lateral leaf-nerves which (if the 

 figure in Hook. Icon. t. 2718 be correct) are simple and marginal in 

 S. affinis. S. affinis would from the figure seem furthermore to have a 

 longer more hirsute type of pubescence. Plate 3, figs. 4, 5, 6, and 7. 



S. ovata, Anderss. (I), 181, & (2), 70. — Charles Isl.: upper 

 wooded region, Andersson ; Lee (hb. U. S. Nat. Mus.). Endemic. 



S. pedunculata, Hook. f. (3), 211 ; Anderss. (1), 181, & (2), 71 ; 

 Hemsl. in Hook. f. Ic. PI. xxviii. t. 2717. — James Isl.: Darwin. 

 Endemic. 



S. retroflexa, Hemsl. in Hook. f. Ic. PI. xxviii. t. 2715 (1901). — 

 Indefatigable Isl. : Habel. Endemic. 



S. Snodgrassii, nov sp. S. Baurii et S. retrojlexae affinis, fruticosa, 

 6-9 dm. alta ; ramis teretibus glabrescentibus foliosis in specimine siccato 

 brunneis tenuiter. striatis ramuiis parce pilosis et tenuissime glanduloso- 

 puberulis ; foliis planiusculis alternis ovato-oblongis penninervatis supra 

 pilis minutis couicis albis obstitis subtus paulo pallidioribus tenuiter 

 pubescentibus pinnatisectis ; lobis obtusissimis et obtuse deutatis sinis 

 angustatis ; petiolis exalatis puberulis ; pedunculis ad apicem ramuli sub- 

 tribus gracilibus saepius unibracteatis puberulis et parce pilosis; capitulis 

 eradiatis ; involucri hemisphaerici squamis obovato-oblongis brevissime 

 acuminatis 3-5-nervatis pubescentibus et breviter ciliatis ; floribus om- 

 nibus $ ; corollae tubo gracili hispidulo-puberulo saepius arcuato in 

 fauces dilatato ; limbo 5-dentato recurvato ; achenio compresso griseo 

 glabro apice subtruncato obsolete 2-dentato ; paleis striatis conduplicatis 

 argute 2-3-dentatis tenuiter parceque puberulis. — Wenman Isl. : 8 

 December, 1898, Snodgrass & Heller, no. 10 (hb. Gr.). Endemic. This 

 species is probably nearest S. retroflexa recently described by Mr. Hems- 

 ley from Indefatigable Island. That, however, has the leaves recurved 

 and somewhat crisped, of slightly different dentatiou and a corolla de- 

 cidedly ampliate in the throat ; also villous petioles. S. Baurii differs 

 in its rugulose leaves, S. Hopkinsii in its very different indumentum, 

 and S. incisa iu leaf contour and the bluntly toothed chaff. Plate 3, 

 fig. 8. 



