UPON A COLLECTION OF PLANTS MADE M MR. G.C. NEALLEY, IN THE 

 J{EGION OF THE RIO GRANDE, IN TEXAS, FROM BRAZOS SANTIAGO 

 TO EL PASO COUNTY. 



By John M. Coulter. 



Mr. G. C. Noalley was enframed by tho ])ivisio!i of Botany to make 

 collectioiivs of plants during the seasons of 1887, 1888, and 1889, in the 

 more unoxi)lored parts of Texas, chiefly in the counties bordering the 

 llio Grande. It was hoped that many of the rarer plants of the Mex- 

 ican Boundary Survey and other early collections would be re-discov- 

 ered, that additional Mexican types would be found to be members of 

 our flora, and that species new to science would be l)rought to light. 

 How far these hopes have been realized is shown in tlje following re- 

 l)ort. It is to be regretted that in many cases the stations are no more 

 definitely given, but they are given with all the fullness that the field- 

 notes will justify.' 



1. Clematis crispa L. Near Brazos Santiajjo in April, and later at Balliiiger 



(liiiiUKjls county). 



2. Clematis Diummondii Torr. & Gray. In jrreat abmulance alonj? tlio Rio 



(JiaiMio iH'iir Itoiiia (Starr county). 



3. Clematis Pitcheri Torr. & Gray. Concho comity. 



4. Aquilegia chiysautha Gray. Soutlnv«st«.'rn Texas. 



5. Cocculus diveisifolius DC. (C. obloiiyi/oHus DC.) Southwestern Toxas. Two 



I'onijs of thifi species occur in Mr. Nealloy's collections ; one with ovate loaves, 

 tlir ntbor with narrowly oblong leaves. 



6. Castalia elegans Greene {Nymphwa elq/ans Hook.). Along the lower Rio Grande 



near Santa Maria (Cameron county), and apparently in considerable abun- 

 dance. This rare and beautiful .species, remarkable on account of its light 

 blue petals, was discovered by Cliarles Wright in 1840, "near the head of 

 the Leona River," a Texan tributary of the Rio Grande. Grown from .seed 

 at Kew, it was described and figured by Hooker in Viirl. Bot. Mag., t. 4G04. 

 Afterwards a single specimon was found by Borlandicr in northern Mexico, 

 and other Hp<>cimen8 by Charles Wright in Cuba. For many years it was 

 unreported, when it, was re-discovered in 1887 at Waco, McLennan county, 

 by Misses Trimble and Wriglit (reported by E. E. Stern in Bull Torr. Bot. 

 Club, XV, 1.3); and in 1888 by C. G. Pringlo, ir lagoons near Brownsville. 

 Bourgcan 4, from Santa Anita, Mexico, referred in IIcmsL Biol. Centr. Amer., 

 ^ i- ^•'>, lo this species, is probably Caslalia JIava Greene. 



'In the case of sets distributed before the publication of this contribution, the 

 numbers on the Labels should ho changed to the serial numbers of tliis paper. Some 

 changes, also, have been made in determination, and hence a few jiameB on already 

 distributed labels are misleading. 



24574— No, 2 1 89 



