XYR1S, ZEA. 
399 
ovate and sub-cordate, margin ciliatc, in the young state villose beneath : 
corolla a little gibbous or calcarate at the base : tube ventricose above : 
divisions short, acute : style exsert. 3—4 f. 
3—1. XYRIS. 6 . 13. 
carolinia na, (yellow-eyed grass. E. y. Au. 'll..) leaves linear, grass-like : stem 
or scape two edged : head-ovate-acute : scales obtuse. 9 — 18 i. S. 
5—13. ZAXTHORHIZA. 26. 61. 
apiifo'lia, (parsley, yellowroot. p. Ap. h>.) stem simple : leaves 3-ternate : peti- 
oles dilated and clasping at the base : racemes compound, below the leaves. 
1 — 3 f. 
21—5. ZANTHOXYLUM. 46. 94. 
fraxin"eum, (prickly ash, tooth-ache bush. O. g-w. M. T 7 .) prickly : leaves 
pinnate : leafets lance-oval, sub-entire, sessile, equal at the base : umbels 
axillary. 8 — 12 f. S. 
19—3. ZEA. 4. 10. 
Southern. 
mays, (Indian corn. y-g. Ju. ©.) leaves lance-linear, entire, keeled. 
