80 
TRANSACTIONS OF THE TEXAS ACADEMY OF SCIENCE. 
Flora. — The following plants, collected at Brownsville by the writer, 
and determined (unless otherwise noted) by Prof. J. M. Coulter, are 
given here as a contribution to the flora of the lower Rio Grande. The 
dates refer in each case to the observed time of blooming. The numbers 
in parentheses at end are those of my collecting. The specimens were 
sent to the Department of Agriculture, where -they were referred to 
Professor Coulter for naming. 
1. Clematis drummondii T. & G. — June 6. “Barba de Chibato.” Oc- 
curs in valleys throughout Texas, and extends into New Mexico. (48, 68) 
2. Castalia elegans (Hook.) Greene. — June 18. Occurs in Cuba, north- 
ern Mexico, and lagoons of the Brazos and Rio Grande. (88) 
•3. Argemone mexicana Linn. — March 24. Flowers white. Det. Co- 
ville. Common in the West Indies and tropical America. (13) 
4. Synthlipsis greggii Gray. — March 24. Peculiar to the lower Rio 
Grande. (15) 
5. Capparis sp.? — A tropical capparidaceous shrub or tree, bearing 
beautiful erect clusters of pink or rose-colored flowers on ends of top 
branches, June 28. This seems to be native on the lower Rio Grande 
near Brownsville. It grows at San Rafael, Vera Cruz. (Det. Towns.) 
( 87 ) 
6. Portulaca oleracea Linn. — A common plant, naturalized from Eu- 
rope. (54) 
7. Abutilon holosericeum Scheele. — June 6. Rather plentiful at San 
Tomas, and in places elsewhere near Brownsville. Southern and western 
Texas. (67) 
8. Abutilon sp.? — June 1. Two miles south of Matamoros, in Ta- 
maulipas. Very similar to preceding, but flowers smaller, orange-yellow. 
Leaves whitish pubescent below, soft green above; one to two feet. (41 ) 
9. Abutilon or Wissadula sp. — June. Edge of palmetto thickets at 
San Tomas. Leaves rounder than A. holosericeum , heart-shaped, with- 
out notch each side of tip. (69) 
10. Malvaviscus drummondii T. & G. — June 7. “Abutilon” (Mexican 
name). In profusion along edge of palmetto thicket at San Tomas. 
Cultivated in gardens. Grows abundantly and rankly at San Rafael, 
Vera Cruz. Extends into Texas to the Colorado and northeastward. (49) 
11. Guiacum angustifolium Engelm. — March 24. Lower Rio Grande 
to the Colorado, and west to the Pecos. (17) 
12. Oxalis corniculata Linn. — March 12. Cosmopolitan. (7) 
13. Xanthoxylum pterota HBK. — June 27, in seed. Lower Rio Grande 
region to Yucatan (Is. Cozumel). (82) 
14. Castela nicholsoni Hook. — March 22 to 24. Very thorny shrub, 
with small bright red flowers growing directly from thorns and branches. 
