200 



BIGNONIACEAE. 



[Vol. in. 



2. Catalpa speciosa Warder. 



Catawba Tree. Larger Indian Bean. 



(Fig. 3368.) 



Calalpa speciosa Warder; Engelm. Coult. Bot. 



Gaz. 5: I. iSSo. : c r 



Catalpa cordi/olia Duhani. Nouveau, 2: pi. 5. 



1802. Not Moencli, 1794. 



A tree, with thick rough bark, reaching a 

 niaxitiium height of 120° and a diameter 

 trunk of4^°, similartotheprecediug species. 

 Leaves not unpleasantly scented, broadly 

 ovate.commonly entire,long-acuniiuateatthe 

 apex; panicles few-flowered; corolla faintly 

 mottled within, the tube obconic, the limb 

 only slightly oblique, the lo%ver lobe emar- 

 giuate; capsule thick-walled, io'-2o' long, 

 nearly 10" in diameter. 



In woods, southem Illinois to Tennessee, west 

 to Missouri and Arkansas. Wood brown, soft, 

 weak, durable. Weight per cubic foot 26 lbs. 

 May-June. 



Family 31. MARTYNIACEAE Link, Handb. i: 50.;. 1829. 



Unicorx-pi..\nt Family. 



Herbs, with opposite leaves, or the upper sometimes alternate, and perfect 

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

 parted or sometimes split to the ba.se on the lower side. Corolla gamopetalous, 

 irregular, the tube oblique, often decurved, the limb slightly 2-lipped, 5-lobed, 

 the lobes nearl}^ 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 numerous or few in each cavity of the ovary, anatropous; 

 style slender; stigma 2-lobed or 2-lamellate. Fruit various in the different 

 genera. Seeds oblong or orbicular, compressed, wingless or narrowly winged; 

 endosperm none; embryo large; cotyledons fleshy, flat; radicle short and straight. 



Three genera and lo species, mainly tropical. 



I. MARTYNIA L. Sp. PI. 618. 1753. 



Coarse diffusely branched glandular- pubescent and viscid strong-scented herbs, with oppo- 

 site or alternate long-petioled leaves, and large violet purple whitish or mottled flowers in 

 short terminal racemes. Calyx i-2-bracteolatc at the base, cauipanulate, inflated, unequally 

 5-cleft, deciduous. Corolla funnelform-campanulate, oblique, decurved, the 5 lobes nearly 

 equal, spreading. Stamens 4 in our species; anthers gland-tipped, their sacs divergent. 

 Ovary i-celled, the 2 parietal placentae intruded 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, the exocarp somewhat fleshy, the endocarp fibrous, woody, crested below 

 or also above, 4-celled by the extension of the placentae. Seeds numerous, tuberculate; 

 [Named for John Martyn, 1693-176S, professor of botany at Cambridge, England.] 



About 8 species, natives of America, 

 em United States. 



Besides the following, 2 others occurMn the southwest- 



