292 APPENDIX G. BOTANY. 



Plate X. Xanthisma Texana. 



Fig. 1-3, scales of the involucre ; fig. 4, a disk-flower ; fig. 5 ; achenium and 

 pappus of the same ; fig. 6, ray-flower ; fig. 7, style of the disk-flower — 

 all magnified. 



Plate XI. Entgelmannia finnatifida. 



Fig 1, a ray-flower, with an inner involucral scale; fig. 2, style of the 

 same ; fig. 3, a disk-flower ; fig. 4, style of the same ; fig. 5, an achenium 



— all magnified. 



Plate XII. Artimesia filifolia. 



Fig. 1, portion of a flowering branch, moderately enlarged ; fig. 2, a single 

 head, more magnified ; fig. 3, the same, longitudinally cut and equally 

 magnified ; fig. 4, a disk-flower, and fig. 5, a ray-flower, both more mag- 

 nified. 



Plate XIII. Ekythrjea Beyriciiii. 



Fig. 1, a flower, magnified ; fig. 2, a capsule. 



Plate XIV. HeLIOTROPITTM tenei.lum. 



Fig. 1, the calyx ; fig. 2, corollo, showing its eestivation ; fig. 3, the same, 

 expanded ; fig. 4, the same, laid open •, fig. 5, fruit ; fig. 6 longitudinal 

 lion of the seed— all magnified. 



Plate XV. Eupi.oca convoj.vulacea. 



Fig. 1, a flower, moderately magnified ; fig. 2, the same, laid open and 

 equally magnified ; fig. 3, the stamens, more magnified ; fig. 4, a single 

 stamen, still more magnified ; fig. 5, the pistil, equally magnified ; fig. 6- 

 fruit, with the persistent style ; fig 7, transverse section of the same, 

 equally enlarged ; fig. 8, longitudinal section of a seed, more magnified. 



Plate XVI. Penstemon ambiguhs. 



Fig. 1, a flower, moderately magnified ; fig. 2, the stamens and a portion of 

 the corolla, more enlarged ; fig. 3, the pistil, equally magnified ; fig. 4, 

 capsule twice the natural size, and dehiscent. 



Plato XVII. Ltppia cun'eifoi.ia. 



Fig. 1, a bract ; fig. 2, a flower; fig 3, the calyx ; fig. 4, the corolla, cut 

 longitudinally, showing the stamens and pistil— ail moderately magni- 

 fied ; fig. 5, the pistil, longitudinally cut, more enlarged. 



