348 ROBixsox. 



n. Heads about 5-flowered, disposed singly or b^' 

 few-headed glomerules in a loose forking cjTnose 

 panicle; leaves sparingly pubescent to velvety 



beneath 16. E. iresinoides. 



711. Inflorescence compact; heads crowded o. 

 0. Leaves obtusish or barely acute p. 



p. Heads sessile or nearh- so; leaves crenate almost 



from the base; shrub 17. E. chamaedrijolium. 



p. Heads slender-pedicelled ; leaves crenate from 



about the middle or subentire; tree 18. E. prunifolium. 



o. Leaves acuminate or attenuate q. 

 q. Leaves ovate, slender-pet ioled r. 

 T. Leaves thin, dehcately membranaceous; in- 

 volucral scales ciUate but shghth^ if at all 

 dorsally pubescent; corollas about 3.5 mm. 



long 19. E. pseudoglomeratum. 



r. Leaves thickish or somewhat firm s. 



s. Scales dorsally pubescent as well as ciliate; 

 corollas (probably white) 3.5 mm. long 



20. E. pseudoriganoides. 

 s. Scales ciliate but essentially glabrous dor- 

 sally; corollas (lilac-blue) 5.5-6 mm. long . 21. E.Stuebelu. 

 q. Leaves rhombic-ovate or lanceolate, subsessile 



or on short thickish petioles 22. E. inulaejolium. 



i. Heads 18-70-flowered t. 



t. Heads densely corjanbed u. 



u. Leaves deltoid-ovate, 2-3 cm. long, coarsely crenate; 



petioles 2-4 mm. long 23. E. rugosum. 



u. Leaves 6-9 cm. long; petioles 5-10 mm. long v. 

 V. Leaves ovate or ovate-lanceolate, more than half 

 as long as broad, punctate but essentially glabrous 



beneath 24. E. obscurifolium. 



V. Leaves ovate-lanceolate, about a third as long as broad, pubescent 



and glandular-atomiferous beneath 25. E. chimborazense. 



t. Heads loosely panicled w. 



w. Climbing shrub; leaves coriaceous; heads 10-12 mm. 



high 2%. E. vitalbae. 



w. Annual herb; leaves thin, membranaceous; heads 



about 4 mm. high 27. E. microstemon. 



5. E. SALiciNUM Lam. (see p. 28G); HBK. Nov. Gen. et Spec. iv. 

 131 (1820); Jameson, Syn. PI. Aeq. ii. 81 (1865); Hieron. in Engl. 

 Bot. Jahrb. xxix. 11 (1900).— Pichixcha: at the base of Mt. 

 Picliincha, alt. 3050 m., Jameson, no. 154 (K.). Ciiimborazo: at 

 the foot of the Volcano Tungura<iua, near the village of Penipe, alt. 

 2470 m., Humboldt & Bonpland (Par., phot. Gr.). Prov. not indi- 

 cated: in shade among thickets on high plains, Sodiro, no. 6/28, 

 ace. to Hieron. I. c. 



Although no material of E. Janicsonii Turcz. Bull. Soc. Nat. ^SIosc. 

 xxiv. pt. 1, 169 (1851) has been seen by the writer, it is impossible 

 from its character and habitat to doubt its identity with E. salicinum 

 Lam., with which it appears to agree fully in all important features. 



