222 WEEDS AND USEFUL PLANTS. 
or abortive (rarely didynamous).. Capsule silique-form, on: long, 
\ ‘thickis ) % See rous, trans- 
engi septum meray opposite the valves. ds 0 
verse, ¢ _unkpamian pr at each end ho a membran ont wing, which 
is fri mose a fe ees. Flowers in terminal panicles, 
1, C. bignoni aes Leaves cordate, acuminate, entire, pubes 
cent beneath ; ee aiid, trichitotanedy branched. 
Diicutiiice Cataupa. Catawba. Bean-tree. 
Stem 15-25 feet high, with irregular spreading branches. Leaves 4— 8 or 10 inches in 
length ; 2-6 inches long, terete, — Corolla ——— tinged with violet- 
purple, the throat spotted with purple and yellow, the lobes unequal, crenate and wavy. 
Capsule 6-12 or 15 inches long, a halt a neh i r, subrciee persistent. 
Seeds e-0 
connate at base, with a membrano ous covering w which is extended at the margin, 
especially at the apex, ting in a slender filamentous tuft or coma. 
About farm-honses and along streams ; Southern, Western and Middle States. Fl. June- 
uly October. 
Obs. Cultivated as a shade tree, but indigenous in the South-west 
In the latitude of New York the larger branches, and frequently the 
whole tree, are killed by a severe winter. 
Sus-orprer 2. Szs 
Herbs with the fruit more or less ifot™. ra not winged. 
3. MARTY’NIA, ZL. Unrcorn-piant. 
[Named i in honor of John Martyn, Prof. of Botany at Cambridge, England.] 
Calyx 5-cleft, with Be 3 small bracts at base. Corolla irregular, cam- 
omic gibbous t base,—the limb unequally 5-lobed. Stamens 
4, pane a wi rudi ry F 
gaa only, bearing anthers. Capsul hat 4-celled, 2-valved, 
woody with a coriaceous and finally deciduous coat, ovoid-oblong, ter- 
minating in a A sg ee parting i ke b 
the capsule scarcely dehisc Seeds few in each cell, arranged in 
ht series along the pectin somewhat baccate, finally  saborvalats- 
1x. M. jprobosei dea, Glor. Stem branching ; leaves orbicular-cordate 
entire, petiolate——the upper ones alternate ; beaks longer than the per- 
icarp. 
Lone-peakeD Martynta. Unicorn Plant. ad 
Plant pale green, viscid-pubescent and fetid. Root annual. Stem leanin: ie 
bent, 1-2 feet long, branching, fistular. epee 2-5 inches ; petioles 2-6 ee 
g. axi inches loi Corolla large, pale pees 
or ochroleucous, with orange colored. or Pie Sain spots within. ern sf 
somewhat sulcate pte: rs a Sion ie crest-like fringe along the iiaie in gah broad 
shallow groove, tape’ is 2-8 or 4 inches long, and finally split 
ie igh which are nearest like pate 
: gardens : cultivated. FI. July— -August. Fr. Sept. patekonk ‘ 
Obs. This plant—a native of the valley of the Pea and the 
_ plains of Mexico—is cultivated for its singular fru in 
