935 
than the tube; corolla bright yellow with purple throat, 1-177 cm. 
(sometimes nearly 2 cm.) in diameter; fruiting calyx rounded ovoid, 
obscurely 10-angled, often purple- -veined, at last often filled with 
the purple berry, which sometimes bursts it. 
P, ixocarpa is a native of Mexico and bordering states. It is 
often cultivated for its fruit and escapes frequently from cultivation. 
The cultivated specimens have often larger flowers and more sinu- 
ately toothed leaves, and have often been mistaken for 2. Phila- 
delphica, from which it can be distinguished by its short peduncles 
which are scarcely longer than the calyx, and by its short and 
broad calyx-lobes.* 
The following specimens have been examined : 
Native: 
California: Dr. T. Coulter, no. 584; Parry and Lemmon, 1876; 
J. C. Nevin, 1878; Engelmann, 1880; S. B. and W. F. Parish, no. 
585, 1882; 1888; W.G. Wright, 1889; C. P. Bingham, no. 29; | S. 
B. Parish, 1893; Dr. E. Hasse, 1887. 
Colorado: Brandegee, 1873. 
New Mexico : Fendler, no. 680, 1847. 
Texas: Berlandier, no. 857; C. Wright, 1848. 
Mexico : Dr. J. Gregg, no. 308, 1848; Thurber, no. 852,1852; 
Bourgeau, no. 871 and 2604, 1865-6; J. G. Schaffner, no. 701. 
1876; H. E. Seaton, no. 453, 1891; Halsted; E. Kerber, no, 
288A ; Parry and Palmer, no. 640 and 646, 1878; Palmer, no. 946, 
1880; no. 1 and 3 1886; W. G. Wright, ı no. 1253, 1889; Pringle, 
no. 806, 1886. 
Cuba: C. Wright, no. 36361. 
Introduced or cultivated: 
Massachusetts: W. Deane; Harvard Botanic Garden. 
New York: Geneva (Nat. Herb. nos. 126164 and 126165), 
1887; T.F. Allen. 
New Jersey: C.F. Parker, 1874. 
Pennsylvania: Martindale, 1876, 1879, Parker, 1874. 
District of Columbia: Richardson, 1878. 
Maryland: J. Donnell Smith, 1876. 
__ Vagmia: Schriver, no. 38, 1882. 
To Specimens collected by WON Ga (mo. 6) We GN 
Wash., has the general habit and leaves of P, Philadelphica, the short peduncles and 
fruit of P. ixocarpa and the flowers intermediate between the two. It may be distinct 
but the material is incomplete. 
