182 FLORA OF TEXAS. 



lobed; petals cuneate-obloiig, cuspidate, entire, a. little 

 longer than the numerous stamens; cajjsiih very narrow, 

 about 3-seeded; seeth linear oblong. — Grai/ and Torrey. 



M. XUDA. Rough Avith minute barbed pubescence; 

 leaves somewhat lanceolate, interruptedly pinnatifid, the 

 segments obtuse ; flowers large, terminating the branches, 

 not hi-acteoUte; petals 10; stamens very numerous; the 

 exterior filaments petaloid and often sterile, the other fili- 

 form ; capsules 3-yalyed at the summit; seeds numerous, 

 winged. Witchita Eiver.— J/«;t^. 



52. TUEXERA FAMILY. Order, Turxerace^. 



Sepals united into an equal 5-lobed calyx, imbricated in 

 aestivation; petals 5, equal, inserted on the calyx, with a 

 twisted aestivation; stame?is 5, alternate with the petals 

 and inserted below them, distinct ; anthers intorse ; ovary 

 free from the calyx, 1-celled, with 3 parietal placentae; 

 ovules numerous; styles 3, commonly branched; capsule 

 3-valved, loculicidal ; seeds numerous, anatropous, with a 

 membranaceous arillus on one side. — Herbaceous or some- 

 times suffrutescent plants; peduncles 1-flowered; petals 

 vellow. 



53. PASSIOX-FLOWER FAMILY. Order, 

 Passiflorace^. 



Climbing Jierbs or sJinihs, with alternate mostly stipu- 

 late leaves, and axillary often showy flowers; calyx of 4-5 

 more or less united sepals, commonly bearing at the throat 

 4-5 petals, and a crown of slender filaments in one or more 

 rows ; stamens 4-5, monadelphous below and enclosing the 

 stipe of the ovary; ovary 1-celled, with 3-4 parietal pla- 

 centcT; styles 3-4, clavate; /r?^iY fleshy or baccate; seeds 

 numerous, anatropous. included in a pulpy sac; embryo 

 in the axis of fleshy albumen. 



