1!)8 FLORA OF TEXAS. 



Bpreading. — JShrub l°-2° h\gh ; spikes 1' long. Aromatic, 

 not -poisonous. 



R viRENS, Lindheimer. Smootli ; leaves evergreen, pin- 

 nate ; leaflets 3-4 paired with an odd one, each is naked ; 

 leaflets ovate or oblong-obtuse, acuminate with the margin 

 subrevolute, entire, coriaceous, above shining, beneath pale 

 and slightly tomentose ; floivers white in th3Tsoid pani- 

 cles; panicles axillary, shorter than the leaves; driqoe 

 red, hirsute. Limestone hills. Western Texas ; Mount 

 Bonnel, Austin. — Slirub, growing in clumps 3-5 feet 

 high. 



35. GRAPE FAMILY. Order, Vitace^. 



Shruhhj plants with a w^atery and sour juice, climbing 

 by tendrils ; known by having a minute calyx with scarcely 

 any lobes ; floivers growing in racemes ; petals valvate 

 in bud and falling off early; stamens 5 or 4, one before 

 each petal, inserted on the disk which surrounds the 

 2-celled, 1-styled ovary; fruit a berry, usually 4-seeded; 

 seeds bony. 



VITIS, L. Grape Vike. 



Petals distinct, or remaining united at the apex and 

 separating at the base, inserted into a 4-5-lobed or cup- 

 shaped disk w^hich surrounds the ovary. 



SYNOPSIS. 



1. § Flowers perfect ; petals and stamens 4-5 ; style conspicuous ; stigma 

 minute; leaves single or compound Cissus. 



2. § Flowers polygamous ; petals 5, cohering at the top, free at the base; sta- 

 mens 5; style short ; disk thick, 5-lobed ; leaves s-imple, cordate, entire or variously 

 lobed Vrris. 



* Leaves mid branches woolly. 

 ** Leaves and branches smoothish. 



V. BiPii^iTATA, "Willd. Leaves bipinnate, smoothish ; 

 leaflets small, ovate, sharply toothed; flowers some- 



