MEXICAN AND CENTRAL AMERICAN UMBELLIFER^E 121 



Eryngium galeottii Hemsl. in Hook. Icon. IV. 6: fl. 2^10. 1897. 



Plate III. a. 



E. microcephalum ^xW^?. Hemsl. Biol. Centr.-Am. Bot. i: 563. 1880. 

 E. ghiesbreghtii Q.. & R. Contr. Herb. 3: 299. 1895, not Decne. 



Perennial (.''), glabrous, nearly unarmed, from a cylindrical tuber- 

 ous root; stem almost simple, slender, 4 to 6 dm. high, bearing i to 3 

 heads; leaves thick, subcoriaceous, scarcely rigid; basal ones with 

 very long petioles, lanceolate, acuminate, rounded at base, crenate- 

 dentate, including the petiole 12.5 to 17.5 cm. long; upper leaves 

 sessile, narrow, gradually smaller upward, aculeate-dentate, bract-like ; 

 heads erect on slender peduncles, globose or oblong, without the 

 bracts about 13 mm. in diameter; involucre of 5 to 7 rigid, lanceolate, 

 acute and pungent bracts, often aculeate-dentate with 2 to 6 unequal 

 teeth, 6 to 12 mm. long; involucels of narrow, almost subulate, pun- 

 gent and incurved bractlets a little exceeding the flowers ; calyx-lobes 

 oblong-lanceolate, long cuspidate-acuminate ; styles elongated and di- 

 varicate ; carpels (immature) subtriangular, scaly throughout. 



Oaxaca : altitude 2100-2400 meters, Galeotti 2']()^ \ Pri7ig-le ^"J^S, 

 in 1894; A. L. Smith 877. 



Nearest E. paucisqiiamosian^ 

 but differs in the lanceolate leaves 

 and aculeate-dentate involucral 

 bracts. Schlechtendal & Cha- 

 misso (Linncea 5: 207. 1S30) 

 reduced, microcephalum Willd. 

 to E. bonplandi Delar., which 

 differs from E. galeottii in its 

 small ovate-oblong leaves, very 

 short entire bracts, papillose car- 

 pels, and remarkably long, re- 

 flexed styles. E. ghiesbregJitii 

 Decne. differs in its cordate 

 leaves. 



Eryngium longipetiolatumllems. 

 in Hook. Icon. IV. 6 : pi. 

 2504. 1897. Fig. 2. 



Perennial ( ? )5 glabrous 

 throughout, wholly unarmed, 

 from a thick fibrous root ; stem 

 erect, with few branches, leafy, 

 3 to 7.5 dm. high, bearing few 

 heads; basal and lower leaves Fig. 2. Eryngium longipetiolatum. . 

 with long petioles (sometimes reaching 25 cm.), thickish, narrowly 

 ovate-oblong, without the petiole 2.5 to 9 cm. long, 2 to 3.5 cm. 

 broad, obtuse or rounded at apex, cuneate at base, truncate-crenate 



