I 



WOOTON AND STANDLEY FLOEA OF NEW MEXICO, 477 



Oil tubes solitary in the intervals be- 

 tween the ribs. 

 Stylopodium flat or wanting. 



Flowers white; an annual 4. Apium (p. 478). 



Flowers yellow; perennials. 



Ribs equal, broad, corky. 11. Oreoxis (p. 480). 



Ribs filiform 8. Aletes (p. 479). 



Stylopodium conical. 



Leaflets broad, large 6. Cicuta (p. 479). 



Leaflets (at least the upper) 

 linear to filifonn. 

 Involucres wanting. 



Flowers white 22. Corla.ndrum (p. 484). 



Flowers yellow 24. Foeniculum (p. 485). 



Involucres present. 



Fruit smooth (ribs 

 filiform) ; 

 leaves with 



few leaflets. . . 7. Carum (p. 479). 

 Fruit tuberculate or 

 bristly; leaves 

 . finely dis- 

 sected 5. Spermolepis (p. 478). 



1. SANICULA L. Self-heal. 



Smooth perennial with almost naked or sparsely leafy stems and palmately cleft 

 leaves with pinnatifid or incised lobes; involucres present; flowers greenish yellow, in 

 irregularly compound few-rayed umbels; calyx teeth somewhat foliaceous, persistent; 

 fruit subglobose, densely covered with hooked bristles. 



1. Sanicvila marilandica L. Sp. PI. 235. 1753. 

 Type locality: "Habitat in Marilandia, Virginia." 

 Range: New England and Nebraska to New Mexico and Alabama. 

 New Mexico: Gallinas Planting Station (Bartlett); Brazos Canyon {Standley & 



Bollman). Damp woods, in the Transition Zone. 



2. ERYNGIUM L. 



Coarse glabrous perennials 30 cm. high or more, with rigid, coriaceous, sometimes 

 spinulose leaves, and small flowers in involucrate heads; sepals prominent, rigid, 

 persistent; fruit ovoid, laterally flattened, scaly or tuberculate; ribs obsolete; stylo- 

 podium wanting; oil tubes mostly 5; seed face plane. 



key to the species. 



Leaves pectinate-dentate or pinnatifid, the lobes spinose- 



tipped, not parallel- veined 1. E. ivrightii. 



Leaves elongate-linear, mostly entire, parallel- veined 2. E. sparganoi^hyllum. 



1. Eryngium wrightii A. Gray, PI. Wright. 1: 78. 1852. 

 Type locality: "Bed of the Limpia or Wild Rose Creek," Texas. 

 Range : Western Texas to southern Arizona. 

 New Mexico: Animas Valley; near White Water. 



