852 FLORA. 



thickets, N. J. and Penn. to Fla., Tex., Kans. and 111. Escaped from cultivation 

 further north. Aug. -Sept. 



I. CATALPA Scop. 



Trees, or some exotic species shrubs, with opposite or rarely verticillate simple 

 petioled leaves, and large white or mottled flowers in terminal panicles, or corymbs. 

 Calyx closed in the bud, splitting irregularly or into 2 lips in opening. Corolla- 

 tube oblique, expanded above, 2-lipped, 5-lobed, the lobes all spreading, their mar- 

 gins crisped. Anther-bearing stamens 2, ascending under the upper lip of the 

 corolla; anther-sacs glabrous, linear or oblong, divergent; sterile stamens (stami- 

 nodia) 3, short (or occasionally 4 perfect didynamous stamens and I staminodium). 

 Disk obsolete. Ovary sessile, 2 -celled; ovules in 2-several rows on the sides of the 

 partition. Capsule elongated-linear, terete, loculicidally dehiscent. Seeds flat, 

 the large lateral wings dissected into capillary processes. [The American Indian 

 name of the first species below.] About 7 species, the following in N. Am., 2 in 

 eastern Asia, 2 or 3 in the W. Ind. 



Corolla thickly spotted within, 2.5-4 cm. long, the lower lobe entire, i. C. Catalpa. 

 Corolla little spotted, 5 cm. long, the lower lobe emarginate. 2. C. speciosa. 



1. Catalpa Catalpa (L.) Karst. CATALPA. INDIAN BEAN. CANDLE-TREE. 

 BEAN-TREE. (I. F. f. 3367.) A tree, with thin flaky bark, the branches spread- 

 ing. Leaves strong-scented, broadly ovate, entire, or 3-lobed, acute or acuminate, 

 densely pubescent beneath, becoming glabrous above, obtuse at the base, 1.5-3 dm. 

 long, the lobes, when present, acuminate; petioles stout, nearly as long as the 

 blade; flowers white, numerous, mottled with yellow and purple within, in large 

 terminal erect panicles; corolla-tube campanulate, the lower lobe entire; capsules 

 2.5-3.3 dm. long, 8-10 mm. thick, thin- walled, drooping. In woods in the Gulf 

 States. Escaped from cultivation northward as far as Penn. and southern N. Y. 

 June-July. 



2. Catalpa speciosa Warder. CATAWBA TREE. LARGER INDIAN BEAN. 

 (I. F. f. 3368.) A tree, with thick rough bark, similar to the preceding. Leaves 

 not unpleasantly scented, broadly ovate, commonly entire, long- acuminate; panicles 

 few-flowered; corolla faintly mottled within, the tube obconic, the limb only slight- 

 ly oblique, the lower lobe emarginate; capsule thick- walled, 2.5-5 dm. l n g near- 

 ly 2 cm. in diameter. In woods, III. to Tenn. , Mo. and Ark. May-June. 



Family 13. MARTYNIACEAE Link. 

 Unicorn-plant Family. 



Herbs, with opposite leaves, or the upper alternate, and perfect ir- 

 regular flowers, racemose in our species. Calyx inferior, 4~5-cleft or 

 4~5-parted, or sometimes split to the base on the lower side. Corolla 

 gamopetalous, irregular, the tube oblique, the limb slightly 2-lipped, 

 5-lobed. the lobes nearly equal, the 2 upper ones exterior in the bud. 

 Anther-bearing stamens 4, didynamous, or the posterior pair sterile; 

 anthers 2-celled, the sacs longitudinally dehiscent. Ovary i-celled, 

 with 2 parietal placentae expanded into broad surfaces, or 2-4-celled 

 by the intrusion of the placentae or by false partitions ; ovules, anat- 

 ropous ; style slender ; stigma 2-lobed or 2-lamellate. Seeds com- 

 pressed ; endosperm none ; embryo large ; cotyledons fleshy, flat ; ra- 

 dicle short, straight. Three genera and 10 species, mainly tropical. 



I. MARTYNIA L. 



Coarse glandular-pubescent and viscid strong-scented herbs, with long-petioled 

 leaves, and large flowers in short terminal racemes. Calyx i-2-bracteolate at the 

 base, campanulate, inflated, deciduous. Corolla funnelform- campanulate. Anthers 

 gland -tipped, their sacs divergent. Ovary I -celled, the 2 parietal placentae in- 

 truded and expanded in the center of the cavity into broad surfaces bearing the 

 ovules in i or 2 rows. Fruit an incurved beaked loculicidally 2-valved capsule. 



