390 PROCEEDINGS OF THE AMERICAN ACADEMY. 



Encclia hirsuta Ktze. f. radiata Ktze. 1. c. 



Specimens examined: Argentina: Dique near Cordoba, Dee. 

 1891, Kuntze (N, cotypes of E. hirsuta Ktze.). Also reported by 

 Kuntze from Sierra de Cordoba, Argentina, Lorentz; Peru (f. radiata, 

 leg. Dombey); and Cartagena, Columbia, Billbcrrj. 



15. S. Dombeyana DC. "Caule terete sparse hispido et inter 

 setas minute puberulo-glanduloso, foliis superioribus alternis petiolatis 

 late ovatis irregulariter repando-dentatis hinc inde sublobatis acutis 

 utrinque setis hispidulis et puberulo-glandulosis, capitulis paucis 

 breviter pedicellatis, invol. squamis lineari-lanceolatis acuminatis 

 disco longioribus, ligulis paucis minimis, achaeniis obcordatis biarista- 

 tis margine ciliolatis.^ — in Amer. austr. verisim. in Peru via legit Dom- 

 bey. Petioli valde hispidi, setis ut in tota planta longis patulis 

 mollibus. (v. s. comm. a Mus. reg. Par.)" 



Simsia Dombeyana DC. Prod. v. 578 (1836). 



M. Casimir de Candolle, to whom I sent fragments of Kuntze's 

 cotypes of E. hirsuta for comparison with the Prodromus type of S. 

 Dombeyana, states that the latter is distinguished by its more hairy 

 achenes with awns nearly as long as the paleae, and by the more long- 

 triangular leaves with the long hairs thinner and the short ones nearly 

 pulverulent. 



B B B. Leaves glandular-puberulent ; heads large, 2-3 cm. in diameter, the 

 rays rather prominent; the scales broader and more corky-ribbed than in 

 any related species; achene 5-6 mm. long; Central American. 



16. S. grandiflora Benth. Erect annual, 1.6 m. high, subsimple 

 or branched above; stem and branches setose, striate, rather sparsely 

 glandular-puberulent; lower leaves opposite, broad-ovate, acute, 

 truncate at base, crenate or crenate-serrate, setose along the veins, 

 glandular-puberulous both sides, the glands more prominent on the 

 lower surface, 7-14.5 cm. long, 4.5-10 cm. wide, on naked glandular- 

 setose petioles 1.5-8 cm. long; the upper decurrent into winged 

 amplexicaul bases, the uppermost sessile, subentire, lance-ovate; 

 heads few, axillary and terminal, hemispheric even in anthesis, the 

 disk 1.5-2 cm. high, 2-3 cm. wide, equaled or slightly surpassed by the 

 involucre; peduncles setose and glandular, 2-12 cm. long; involucre 

 triseriate, the inner scales slightly longer, lance-ovate to ovate-oblong, 

 subacute, glandular-hispid, with about 4 conspicuous light thickened 

 ribs in the lower half, the central pair most prominent, the upper part 

 herbaceous; rays oval, about 20, yellow, 9 mm. long, 4.2 mm. wide, 

 rather prominent, usually present; disk-corollas 5.5-6 mm. long (tube 

 1.3 mm.), yellow, glandular; pales 9-10 mm. long, puberulent on keel 



