ROBINSON AND GREENMAN.— GENUS PERYMENIUM. 523 
characters. — Prodr. v. 608 ; Hemsl. Biol. Cent.-Am. Bot. ii. 180. — Char- 
acterized from a plant cultivated in Mexico. Not seen by the writers. 
+ + Involucral scales narrower, ovate-lanceolate, acute or at least much narrowed 
to an obtuse tip. 
3. P, BUPHTHALMOIDES, DC.  Suffruticose: branches appressed- 
puberulent: leaves Opposite, subsessile, elliptic-lanceolate, acuminate, 
3-d-nerved at the base, coarsely serrate, sparingly puberulent above, 
puberulent especially upon the veins beneath; peduncles terminal, elon- 
gated, subsolitary : involucre campauulate ; scales oblong-lanceolate, sub- 
acute, appressed-puberulent : rays 7 to 10, oblong, 1.5 cm. long, 4 to 5 
mm. broad. — Prodr. v. 609 (whence descr. is compiled) ; Hemsl. l. c. 
181. — Mexico, Alaman, ace. to DC. Having seen no authentic speci- 
men of this species we have been obliged to interpret it from the descrip- 
Hon and from a careful drawing in the Klatt herbarium. To this species 
we refer Pringle’s no. 7 636, collected on the Serrania de Ajusco, in the 
Federal District, Mexico, altitude 3,000 m. Most of its leaves are acute 
but a few are acuminate and the pubescence of the involucral scales is 
not appressed. 
- P. Rosei. Stems from a lignescent base, erect or nearly so, 
3 dm. high, covered with a coarse spreading pubescence: leaves ovate to 
oblong-lanceolate, coarsely and sharply serrate-dentate, acute, green and 
pubescent on both surfaces, 8—5-nerved from the rounded essentially 
Sessile base, 3 to 4 cm. long, 1 to 1.5 em. broad: peduncles mostly 2 or | 
3 at the ends of the branches, 5 to 8 cm. long, 1-headed ; involucral 
Scales about 10, oblong-lanceolate, acute, 8 mm. long: rays about 7, 
bright orange, elliptical, 1.3 cm. long, 9 mm. broad. — Road between 
Mesquites and Monte Escobedo, Jalisco, Dr. J. NV. Rose, 26 August, 1897, 
ho. 2608. Types in herb. U. S. Nat. Museum and herb. Gray. 
* * Involucral scales minutely strigose with closely appressed hairs not ciliate. 
5. P, CERVANTESH, DC. Stems numerous, decumbent, subsimple, 
“ppressed-puberulent : lowest leaves ovate, the others narrowly elliptic, 
strongly 3-nerved, regularly but rather finely and remotely serrate, 
Scabrous-puberulent, acute, green on both sides: peduncles long, mostly 
Solitary at the ends of the stems; involucral scales ovate-lanceolate, 
Dattowed to an oblusish or acute tip: rays about 11, oblong, 1.5 cm, in 
length, 4 mm. in breadth. — Prodr. v. 609 ; Hemsl. Biol. Cent.-Am. Bot. 
is 181. — Valley of Mexico, Santa Fé, Bourgeau, no. 378, Flor de 
ia, Pringle, no. 3169. 
