y. PLANT JE WRIGHTIANjE. 81 



natis nunc coriaceis supra lucidis ; ovariis semper 2. — Z. coriaceum, Wright in Herh. 

 Z. digynum, Engelm. in lift, cum descr. Near Austin ; also on the Rio Grande, Tex- 

 as; May. (Hooky soil, New Braunfels, April, Lindheimer, 1850.) — If I rightly 

 remember, this is indicated as a new species by Nuttall, in the herbarium of the 

 Academy of Natural Sciences, I have no record under what name. I have received 

 it in the earliest collections of Mr. Wright, who always insisted it was quite dis- 

 tinct from Z. Carolinianum, and was uniformly a shrub of small height. And in 

 Lindheimer's collection of 184:9-50, Dr. Engelmann has likewise characterized it. 

 I have just received it from Mr. Shuttleworth, under the name of Z. alveolatum, n. 

 sp., PI. Rugel. No. 71, from Southern Florida, which name should be preferred, hav- 

 ing been applied to it in a named, distributed collection. Still, I am unable to dis- 

 tinguish it as any thing more than a variety of the Southern Prickly Ash, into the 

 ordinary state of which (viz. with ovate-lanceolate and acuminate leaflets) the foli- 

 age passes in a series of specimens before me ; and the flowers appear to be quite 

 the same. A specimen from Norfolk, Virginia, has equally small and short leaves. 

 The apex of the connective of the anthers is thickened and glandular, as it is, per- 

 haps less conspicuously, in the ordinary Z. Carolinianum. 



82. Ptelea trifoliata, y3. mollis. Ton: 8f Gray, Fl. 1. p. 680. P. mollis, Curtis, 

 in Sill. Jour. Along Turkey Creek, W. Texas ; June, in fruit. 



ANACARDIACEiE. 



83. Rhus virens, Lindh. in PI. Lindh. 2. p. 159. Pass of the Limpia, and 

 hills along the San Pedro River, in flower and fruit. — Specimens of what appears 

 to be the same species, from Galeotti's Mexican collection (No. 3,900) are in Hook- 

 er's herbarium, named Rhus Scheideana, Schlecht., by Planchon, and perhaps cor- 

 rectly. But the leaflets are at most 9, instead of from 11 to 15, and scarcely if at 

 all cordate. — This species is a pinnated Lobadium with panicled aments, accord- 

 ing to Dr. Engelmann ; the flowers being sessile and tribracteate, and developed 

 in October, not in March, as said in PI. Lindh. 



84. R. MicROPHYLLA {Engelm. in litt.) : " fruticosa ; ramulis verrucosis ; foliis im- 

 pari-pinnatis 3-4-jugis, rhachidi alat-a; foliolis sessilibus parvis ovalibus obtusis v. 

 mucronatis basi acutis integerrimis seu levissime crenulatis pilosulis ; floribus dioicis 

 amentaceis prfecocibus basi tribracteolatis ; petalis ciliatis ; drupa globosa subcom- 

 pressa glandulari-pilosa, putamine Isevi. — Margins of thickets, on the top of hills, 

 in the large prairie between New Braunfels and San Antonio, 15 miles from the for- 

 mer place, 1850 ; also gathered, without developed flowers, in 1846. It blossoms 

 in March, and shows ripe fruit in May. A large shrub : stems one or two inches 

 in diameter, branching above, with numerous small branchlets. Leaflets 3 or 4 

 lines long. Disk 5-lobed, the lobes emarginate. A true Lobadium with pinnated 

 leaves." Engelm. — Mr. Wright's specimens (barely in flower) were gathered be- 

 tween the Leona and Turkey Creek, in June. 



+ R. TRiLOBATA, Nutt. in Torr. Sf Gray, Fl. 1. p. 219; Gray, PI Fendl. p. 28. 

 New Mexico ; with ripe fruit. Drupes deep scarlet, sparsely hairy. 



