216 ELEMENTS OF BOTANY. 



reddish-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. March-April. Common in woods. 



II. TECOMA. 



Woody vines, climbing by aerial rootlets ; leaves compound, 

 odd-pinnate ; flowers large, in terminal clusters ; calyx bell- 

 shaped, unequally 5-toothed ; corolla funnel-form, enlarged 

 above the calyx, 5-lobed, slightly 2-lipped ; stamens 4, didyn- 

 amous ; capsule slender-fusiform, slightly compressed con- 

 trary to the partition, 2-valved, dehiscent ; seeds winged. 



T. KADicANS (L.) DC. Trumpet Flower. Stems climbing 

 high by numerous rootlets, bark shreddy ; leaves deciduous, petioled ; 

 leaflets 9-11, ovate to ovate-lanceolate, serrate, short-stalked, smooth 

 or slightly pubescent ; flowers in short, terminal racemes or corymbs ; 

 calyx tubular, | in. long ; corolla 2-3 in. long, scarlet without, yellow 

 within, the lobes spreading ; capsule 5-6 in. long, curved, often per- 

 sistent through the winter ; seeds broadly winged. May-June. On 

 borders of fields and in woods. 



III. CATALPA. 



Small trees ; leaves opposite, simple, petioled, deciduous ; 

 flowers large and showy, in terminal y)anicles ; calyx irregu- 

 larly 2-lipped ; corolla tubular-bell-shaped, oblique, 5-lobed, 

 2-lipped ; fertile stamens 2, sterile stamens o, short ; fruit a 

 linear, 2-valved, many-seeded capsule; seeds winged. 



C. Catalpa (L.) Karst. Catalpa. A small tree with thin, 

 rough, gray bark and light, soft, but exceedingly durable wood; 

 leaves long-petioled, cordate, entire or palmately 8-lobed, acuminate 

 at the apex, palmately veined, pubescent ; branches of the panicle in 

 3's ; flowers large. 1-H in. long, white, variegated with yellow and 

 purple ; corolla lobes uudulate or crisped ; capsule very slender, 1 ft. 

 or moi-e in length, pendulous; seeds with long, fimbriate wings. 

 April-June. On margins of rivers and swamps. 



115. MARTYNIACEJE. UXICORN-PLANT FAMILY. 



Herbs ; leaves entire, petioled, the lower opposite, the upper 

 alternate ; flowers perfect, irregular, in terminal racemes ; 



