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ROSE MEXTCAX AND CENTRAF. AMERICAN PLANTS. 129 



f 



examination of mature fruit sliowy clearly tliat it doen not belong to the ti-ue Peucc- 

 danum of the Old "World or to the recently se<,m^gated genus Loinatiiun. 

 The following specimens are in the National Herbarium: 

 Jalisco: Volcano de Collma, M. E. Jones, 189:5 (no. 235J. 

 Mexico: Nevado dc Toluca, C. G. Tringlc, lSf)2 (no. 4238); also Kose & Painter, 



1903 (no. 7960); Sierra do las Cruciw, C. G. Pringle, 1903 (no. 5953). 

 Hidalgo: Sierra de Pachuca, C, G. Pringle, 1902 (no. 9816); also Ptose & Hay, 



1901 (no. 5596). 

 Puebla: Mount Orizaba, II. K. Seaton, 1S91 (no, 118); also Rose cl- Hay-, 1901 



(no. 5717). 



Deanea tuberosa Coult. & liose. 



Collected by J. N. Rose and Jos. H. Painter, near EI Salto, Hidalgo, September 

 IG, 1903 (no. 7064); also in barranca of Rio Aquedncto, near Santa Fe, Valley of 

 Mexico, July 15, 1905 (no. 8G18). 



ERYNGIUM, NEW AND OLD SPECIES. 



Eryngium altamiranoi flemsley & Rof^e, t^p. nov. 



Stems erect, 30 to 50 cm, liigh, simple below, nmch-branched above; basai leaves 

 deeply cleft, the edge with a white cartilaginous margin extending beyond the teeth 

 into long white setae; ui)per stem and floral leaves sessile, deeply parted; heads 

 «hort-peduncled, rarely 2 cm. long, ovoid, 10 cm. long; bracts few, ovate, pungent, 

 entire or bearing one or even two teeth on each side, the margin white and the inner 

 face cartilaguiouff and white, usually erect, im:losing the heads; bractlets linear, 

 pungent, somewhat longer than the sepals; sepals ovate, thin, mucronate-tii)ped; 



fruit papillose, the papillae usually obtuse. 



Type U. S. National Herbarium no. 253003, collected by F. Altamirano, October, 



1891 (no. 20). 



Common on the plains near Guadalajara. 



Specimens examined: 



Jalisco: C. G. Pringle, 1902 (no. 9814), and 1903 (no. 11462); Dr. E. Palmer, 

 1886 (no. 458) ; Rose & Painter, 1903 (no. 7338) ; F, Altamirano, 1891 (no. 20). 



Eryngium carlinae Delar. 



Collected by J. N. Rose and Jos. II. Painter near Tultenango, Mexico, October 13, 

 1903 (no. 7823); also between Sumoriel and Las Lajas, Hidalgo, August 5, 1905 (no. 

 9220). 



Eryngium comosuni Delar. 



Collected by J. N. Rose and Jos. H. Painter near Fl Salto, Hidalgo, September 16, 

 1903 (no. 7097); also on rocky banks of streams near San Angel, Valley of Mexico, 

 August 15, 1905 (no. 9492). 



■ 



Eryngium confusuna Hemsley & Rose, sp. nov. 



Stems from a slender spindle-shaped root, 20 to 45 cm. high, naked below^, with 

 scattered branches above and an umbel of usually 6 bran(4ies, glabrous; basal 

 leaves oblanceolate, 5 to 8 cm. long, deejily toothed or cleft, rarely doubly cleft; 

 lower stem leaves somewhat simitar; upper stem leaves short, deeply cleft into nar- 

 row spinescent entire or toothed lobes; heads short-peduncled (2 to 5 cm. long); 

 involucre bracts narrow^ entire or with a tooth on each side, ending in a strong 

 epineecent tip, longer than the heads, ascending; heads ovoid, 10 to 12 nun. long; 

 bractlets small, a little longer than the calyx teeth, except the central ones, these 

 much elongated, resembling the bracts; sepals broadly ovate, keeled on the back, 

 and strongly mucronate at tip, bluish-tinged; fruit eoyered with wdiite acuminate-. 



l)r>inted scales. 



