BROOM RAPE FAMILY 223 



very slender, 1 ft. or more in length, pendulous. Seeds with long 

 fringed wings. On margins of rivers and swamps S. ; often cultivated.* 

 2. C. speciosa Warder. CATALPA. A tall tree with very durable 

 wood. Leaves large, heart-shaped, taper-pointed. Corolla about 2 in. 

 long, almost white, but slightly spotted ; tube inversely conical ; limb 

 somewhat oblique, its lower lobe notched. Pod rather stout. Rich, 

 damp woods, especially S. W. ; often cultivated. 



m. BIGNONIA L. 



Woody vines. Leaves opposite, compound, usually tendril- 

 bearing. Flowers large, in axillary clusters. Calyx cup-shaped, 

 truncate, or undulate-toothed. Corolla spreading-tubular, some- 

 what 2-lipped, the lobes rounded. Stamens 4, 2 long and 2 short. 

 Capsule linear, flattened parallel with the partition, the two 

 valves separating from the partition at maturity ; seeds flat, 

 broadly winged.* 



1. B. capreolata L. CROSS VINE. Stem climbing high, a trans- 

 verse section of the older stems showing a conspicuous cross formed 

 by the 4 medullary rays ; branches smooth. Leaves evergreen, peti- 

 oled ; leaflets 2, ovate, taper-pointed with a blunt apex, heart-shaped 

 at the base, entire, stalked ; upper leaflets transformed into branching 

 tendrils. Flowers numerous, short-peduncled. Corolla 2 in. long, red- 

 dish-brown without, yellow within. Capsule 6 in. long, flat, the valves 

 with a prominent central nerve ; seeds broadly winged on the sides, 

 short-winged on the ends. Common in woods S.* 



92. OROBANCHACEJE. BROOM RAPE FAMILY 



Leafless brownish root parasites ; rootstock often tuberous, 

 naked or scaly ; stem usually stout, solitary, scaly. Flowers 

 spiked or racemed. Sepals 4-5, free from the ovary. Corolla 

 hypogynous, not actinomorphic, the tube curved, the limb 2- 

 lipped. Stamens 4 (2 long and 2 short), inserted on the corolla 

 tube; anthers 2-celled, the cells spurred at the base. Ovary 

 1-celled, of 2 carpels ; style simple ; stigma 2-lobed ; ovules 

 many. Capsule 1-celled, 2-valved, few-many-seeded ; seeds 



very small. 



I. CONOPHOLIS Wallr. 



Stems often clustered, stout, covered with scales which 

 overlap, the uppermost ones each with an axillary flower, 



