462 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. [1885. 



In yards and gardens : 



Cynodon dactylon (Bermuda Grass), introduced. 



Panicum fuscum and Texanum (Panic-Grasses). 



Hordeum pusillum (Wild Barley). 



Leptochloa mucronata. 



Paspalum distichum. 



Eriochloa sericea. 



Melica diffusa. 



Digitaria sanguinalis (Finger-Grass). 



Eragrostis oxylepis. 



Setaria glauca (Bristly Fox-tail). 



Festuca tenella. 



Lepturus paniculatus. 



Cenchrus tribuloides (Bur-Grass). 



Bromus unioloides (Johnson-Grass). 



VALLEYS EAST OF THE PECOS. 



Most of the trees noticed on the San Antonio Eiver reappear in other 

 valleys east of the Pecos. 



The Medina is well timbered with Pecan and Water Elm ( Ulmus crassi- 

 folia)', more sparsely with Cottonwood, Sycamore (Platanus occidentalism 

 and Bald Cypress, all large, useful trees. On higher grounds are groves 

 of fine Live Oak whose short trunk measures from 2 to 4 feet in diameter. 



The Hondo, Seco, and Sabinal (Cypress Creek) are poorly wooded ; 

 the Frio, only fairly so in scattered clumps. 



The Nueces River, although dry in many places, is well timbered from 

 the heads of its forks to its mouth. On its forks thrive the Chestnut 

 Oak (Quercus Muhlenbergii), 3 to 4 feet in diameter, a smaller Oak with 

 pale foliage (Q. Durandii), the Texas Red Oak (Q. rubra, var. Texana), 

 the Soapberry (Sapindus marginatus), the Wild Mulberry (Morus micro- 

 phylla) and the Black Willow. On its lower part are groves of Cotton- 

 wood and Texas Green Ash (braxinus viridis, var. Berlandieriana). 



The country between Uvalde and Eagle Pass is drained by several 

 creeks, viz.: Turkey, Chuparosa, Live Oak, Comanche, and Penitencia, 

 all converging into Lake Espantosa. They are mostly dry, but their 

 courses are well marked by fringes of Live Oak and Water Elm, to- 

 gether with Hackberry, Green Ash, Retama (ParMnsonia aculeata) and 

 Black Willow. 



Las Moras Creek takes its name from the scattered Mulberry trees 

 (Morus microphylla) growing on its banks. Groves of Pecan, Live Oak, 

 and Water Elm, with the usual Hackberry and Soapberry, are found 

 near its head at Fort Clark. 



The Pinto and Sycamore are thinly wooded all along their immediate 

 margins. The San Felipe is fairly timbered near its mouth, but much 

 of its course is bare. 



