ai aul 
116 MISSOURI BOTANICAL GARDEN. 
E. tTerrapora Engelm. Mex. Bound. 2':191. 1859; 
Boiss. DC. Prod. 157: 142. 1862; Chapm. Suppl. 
South. Flora 646. 1883; Coulter, Bot. West. Tex. 
394, 1894. E. tetrapora Berlandieri Boiss. DC. 
Prod. 157: 142. 1862. 2. peplidion Holzinger, Cont. 
U.S. Nat. Herb. 1: 216. 1892. 
Stem erect, simple or with a few branches from the 
crown and below the umbel, 7 to 25 cm. high; rays 8, 1.5 to 
3 cm. long, several times branched; cotyledons ovate 
elliptical, 3 to 5 mm. long, 2 to 3 mm. wide, with a petiole 
2 mm. long; stem leaves cuneate spatulate, attenuate into 
a petiole, retuse or obcordate, the lower 1 mm. wide and 
3 mm. long, 7 mm. wide and 20 mm. long above; inter- 
nodes one-third as long; umbel leaves more obovate; floral 
leaves triangular ovate, mucronate, truncate or cordate at 
the base, subconnate, sometimes subpandurate, 7 to 14 mm. 
wide, 5 to 10 mm. long; involucres about 1 mm. high and 
broad, smooth except the ovate lobes which are short 
ciliate; glands 1 mm. wide, less than half as long, short 
stipitate; horns about 1 mm. long, diverging or usually 
erect; fifth gland replaced by a small lobe; bracts very 
small; stamens 10 to 15; capsules subglobose, 2.5 mm. in 
diameter; cocci rounded or somewhat flattened with a low 
ridge on each side the dorsal suture; styles .5 to 1 mm. 
long, united at the base, short bifid at the apex, capitate 
stigmatose ; seeds oblong, slightly flattened, microscopically 
tuberculate, 4 to 6 large shallow pits on the inner faces, 
these sometimes confluent into irregular oblong grooves ; 
the back with 15 to 20 irregularly arranged shallow pits or 
almost smooth, 1.3 to 1.4 mm. long, .8 to .9 mm. wide, 
-7 mm. thick; caruncle hat shaped, usually large. — Indian 
Territory to Texas, east to Georgia. — Plate 32. 
Specimens examined from Texas (Reverchon, Dallas, 884, 1881, 1876; 
Lindheimer, 18389; Wright; Thuron, Hockley, 3, 1889; Jermy, Gillespie 
Co., 162; Joor, Houston, 1877; Wurzlow, Industry, 15, 1893); Indian 
Territory (Palmer, 298, 1868); Louisiana (Hale, Red River). 
Also reported from Georgia (Chapman, Bot. Gaz. 8:12. 1878). 
32 
