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BOTANY. 



2C3 



oblong. The narrower leaved forms approacli P. Pennsylvanica. Found in many parts of tlie 



world, but not in Europe. 



HuMULUS LupuLUS, Linn. Sp, 2^ p. 1028 ; Toi^r. FL N. York, 2, p, 225, d in Sitgr. Rep, p. 



-I 



1^3 H. AmevicanuS; Nuit. PI. Gamh. in Joiu\ Acad. Phil. n. ser. l^p 181. Banks of the 



Mimhres ; Bigelow. (No. 1860^ Wriglit ) 



MoRUs RUBRA, Liuu I. c. p. 986 ; Michx, f. Sylv. 2, t. 116. Common in western Texas, New 

 Mexico, and Chihuahua; often flowering and bearing fruit when a low shrub. (No. 1859, Wright.) 

 Nos. 2498 and 2416, Bexlandier. The leaves are commonly about two inches long, but those 

 of vigorous shoots are sometimes 11 inches long and 8 inches in diameter. 



Celtis occidentalis, Linn. Sp, (ed. 2) 2, p. 1478 ; Michx. f. Sylv. 2, 1. 114 ; Torr. Fl. N. Yorh^ 

 2, p. 167. C. crassifolia, Lam. Western Texas and New Mexico, We quite agree with Dr. 

 Gray in regarding 0. crassifolia as a mere variety of this species. Some of our specimens show 

 a transition to C. Mississii>piensis, Bosc^ (C. integrifolia, Nutt ,) which Dr. Gray suspected was 

 not distinct. 



Celtis (MoMisrA) pallida (n. sp.) : ramis incano-puberulis ; spinis subgeminis rectis ; foliis 

 ovatis vel ovato-oblongis pauci serratis integerrimisque puberulis crassiusculis breviter petiolatis 

 basi acutiusculis raro leviter cordatis ; cymulis polygamis 3-5-floris petiolo pauUo longioribus ; 

 bacca ovata laevi glabra. (Tab. L.) Common in western Texas and along the Rio Grande, 

 from Fort Duncan to the Gulf, and west to Magdalena in Sonora. It is called Grangeno in Neuvo 

 Leon. (No. 1858, Wright ; No. 3021, Berlandier.) A shrub 6-10 feet high, with numerous 

 flexuous spreading branches. Thorns from 2 or 3 lines to an inch in length. Leaves 8-14 lines 

 long, mostly acute, 3-nerved, minutely pubescent and somewhat scabrous on both sides. Flowers 



w 



small, white ; the lower ones of the cymule mostly male, with a rudimentary pistil * the ter- 

 minal one perfect. Styles thick, divaricate, cleft nearly half their length, the undivided portion 

 rather shorter than the ovary. Berry about three lines long, orange, yellow, and red, with an 

 acid pulp, which is edible but rather astringent. This species seems to be nearest the Brazilian 

 C. orthocanthos, Planch. 



Ulmus crassifolia, Nutt. in Trans. Amer. PhiL Soc. {n. ser.) 5, p. 169. U. opaca, Nutt. Sylv. 

 1,^. 35, t. 11. On the banks of rivers, from San Antonio, Texas, to the Pecos river ; Schott. 

 Thurher. (No. 1857, Wright; No. 346, Coll, II, Texas, Br ummond;l^o . 2546, Berlandier.) Mr. 

 Nuttall, in his Sylva, has overlooked his much earlier name and description of this species. 



Ulmus alata, Michx. Fl. 1, p. 173 ; Michx. /. Sylv. 2, t. 127. Near Eagle Pass on the Rio 

 Grande ; Bigelow. 



SAURACE^. 



Anemopsis Californica, Nutt. in Tayl. Ann. Nat. Llist. I,j9, 136 ; Hook, d Am. Bat. Beechey^ 

 p. 390, t. 92. Wet places, San Luis Key, California ; Parry. Western Texas, Mew Mexico, 



and Chihuahua^ April — July. . 



CERATOPHYLLACE^, 



Ceratophyllum DEMERSUM, Linn. Sp. p. 1409, In running water, near the southern bound- 

 ary line of Upper California ; Parry. 



BETULACEiE. 



i 



Alnus vibidis, DG. Near San Diego, California ; Parry. Our specimens are without fruit. 

 Dr. Parry informs me that this is a common species in California, and that it sometimes becomes 



