ROBINSON AND GREENMAN. — GENUS MONTANOA. 509 



south as the Andes of Ecuador. Three natural subgenera are readily 



recognizable. 



Subg. 1. Eriocarpha. Heads snaall, numerous, corymbose : ligules 



2 to 5 or : pales conspicuously, densely, and permanently silky-villous, 



the spinescent tip mostly recurved in fruit: leaves various, 3-nerved. — 



Eriocarpha, Cass. 1. c. Montagncea § Eriocarjihce, DC. Prodr. v. 564. 



Eriocoma, HBK. Nov. Gen. & Spec. iv. 267. — Seven species, all 



Mexican. 



* Ligules none : disk-flowers only 3 or 4. 



1. M. anomala. Branches lignescent, pithy, obscurely 4-angled, 

 striate, retaining only short and sparse remnants of a pubescence which 

 in the early stages of growth is evidently copious and silvery : leaves 

 opposite even up to the inflorescence, petiolate, the uppermost (the only 

 ones known) suborbicular, bioader than long, 4 cm. in length, 5 cm. in 

 breadth, mucronulate-denticulate, not lobed, puberulent and scabrous 

 above, rusty-tomentose beneath: panicle round-topped, 1.8 dm. broad; 

 the branches and linear bractlets tomentose ; heads crowded ; involucral 

 scales about 5, uniseriate, linear to linear-lanceolate, silky-villous on the 

 outer surface : corollas densely pubescent except on the tube below. — 

 Montanoa sp. Hemsl. Biol. Cent.-Am. Bot. ii. 166, where remarkable 

 character is noted. — Collected by Bourgeau in the Valley of Cordova, 

 Vera Cruz, Mexico, 16 March, 1866, no. 2057. 



* * Ligules present, (2 to) 5; disk-flowers usually more numerous. 



1- Bracts of the involucre, during antliesis, 2.5 to 4 mm. long. 



■M- Leaves ovate, ovate-deltoid, or lanceolate, sometimes crenate-toothed and 

 hastate, but not otherwise lobed ; petioles wingless. 



= Leaves crenate-dentate, with base mostly obtuse, truncate, or cordate. 



2. M. FLORiBUNDA, Sch. Bip. Branching shrub, 1.5 to 2.5 m. high: 

 branches terete, striate, tomentose, at length glabrate : leaves all or nearly 

 all opposite, ovate or more commonly deltoid-ovate, acute, rounded or 

 more often truncate or broadly cordate at the base, shallowly crenate- 

 dentate, 3 to 6 cm. long, often as broad, scabrous above, more or less 

 sordid-tomentose beneath ; petioles 1 to 2 cm. long, tomentose, usually 

 naked, rarely appendaged near the leaf-blade : panicle corymbose, the 

 branches slender, much exceeding the leafy bracts : disk-flowers about 

 15 ; ligules 5, from 5.5 to 7 mm. long. — Sch. Bip. in Koch, Wochenschr. 

 vii. 406; Hemsl. Biol. Cent.-Am. Bot. ii. 165, in part (excl. pi. Bour- 

 geau). Eriocoma Jioribunda^ HBK. Nov, Gen. & Spec. iv. 268, t. 396. 

 Montagncea Jloribunda, DC. Prodr. v. 564. — Eastern-central and South- 



