ROBINSON AND GREENMAN. — GENUS ZALUZANIA. 533 



Klatt, Leopoldina, xxiii. 89. Ferdlnanda montagncefoUa, Sch. Bip. in 

 Koch, Berl. Allgera. Gartenz. 1858, 179. — S. Mexico, between Vera 

 Cruz and Orizaba, Milller; Ocotla, Liehmann, no. 272; also in Oaxaca 

 near Monte Alban, altitude 1,600 m,, Pringle, no. 4928 (distrib. as Z. 

 asjicrrlma). 



++ ++ -M. Leaves acute, elliptic- or rhombic-ovate; petioles short or none. 

 = Base of corolla-tube expanded over the rounded summit of tlie achene. 



9. Z. MEGACEPHALA, Sch. Bip. Leavcs rhombic-ovate, serrulate 

 above the middle, narrowed into an entire cuneate petiole, acute at the 

 apex: corymb many-headed: heads the size of a filbert. — Flora, 1861, 

 p. 562. Ferdlnanda augusta, var. megacephala^ Sch. Bip. fide ipsi 1. c. 

 563. — Near Real del Monte, Ehrenberg, ace. to Sch. Bip. The above 

 brief compiled character comprises all distinctions as yet published of this 

 plant. Dr. Gray referred to the species a specimen collected by Dr. 

 Palmer in the Sierra Madre, south of Saltillo, Coahuila, no. 734. It has 

 an erect subsimple leafy puberulent stem, ovate acute thinnish leaves, 7 to 

 10 cm. long, 4 to 8 cm. broad, canescent beneath, serrulate except near 

 the base where cuneately narrowed to very short scarcely winged petioles 

 (4 to 7 mm. in length) : heads in an irregular corymb ; involucral scales 

 narrow, oblong, obtusisl?, canescent-puberulent: ligules about 9,8 mm. 

 long. Mr. Pringle has also secured specimens of the same plant near 

 Carneros Pass, Coahuila, altitude 3,000 m., no. 2398 (distrib. as Z. 

 Coulteri). 



10. Z. Coulteri, Hemsl. Stems puberulent, purple, leafy, simple 

 to the leafy -bracted corymb : leaves ovate, serrate, pubescent above, to- 

 mentose beneath, rounded at the base, slightly acuminate at the insertion 

 of the short petiole : involucral scales ovate-oblong, soft-pubescent. — 

 Biol. Cent.-Am. Bot. ii. 159, t. 46. — Real del Monte, Co^dter, no. 350; 

 also collected by C. G. Pringle on the Sierra de Pachuca, Hidalgo, alti- 

 tude 2,700 m., 13 August, 1898, no. 6956. Type number in herb. 

 Gray. 



= = Base of corolla-tube not perceptibly expanded : achene margined at the 



summit. 



11. Z. RESiNOSA, "Watson. Stoutish, pubescent: leaves rhombic- 

 ovate, very large, 1.4 to 2.6 dm. long, 8 to 14 cm. broad, dentate, green 

 on both sides, bearing minute resinous globules beneath : heads short- 

 peduncled in a loose irregular corymb ; involucral scales numerous, the 

 outer ovate-lanceolate, acutish, tomentose, the inner broader, rounded at 

 the summit, striate, glabrate. — Proc. Am. Acad. xxv. 153. — Canons of 



