200 PROCEEDINGS OF THE AMERICAN ACADEMY 



(including Brown's Plutypetahim), and that it may fairly be associated 

 with B. pilosa and B. purpurascens, both illustrated by Hooker, not- 

 withstanding the reduction of the ovules to a \)\xiv in each cell and the 

 maturation of only one or two large seeds. 



^scuLUS Parryi. ^. Callfornicce afRnis, frutex humilis ; 

 foliis 3-5-foliolatis ; folio! is obovatis obtusis subcoriaceis brevissime 

 petiolulatis subtus cano-tomentosis ; floribus brevipedicellatis ; calyce 

 campanulato ad medium usque gequaliter 5-fido petalisque extus to- 

 mentosis ; filamentis validioribus minus exsertis. — Northern part of 

 Lower California, April, 1882, Parry ^ Jones, and Pringle. 



Crotalaria Pringlei. Simplicifolia, e basi suffrutescente per- 

 enni ramosissima, pilis longis albidis villoso-sericea; foliis oblongo- 

 lanceolatis (semipoU. ad pollicarem) subsessilibus utrinque obtusis 

 mucronatis, aliis exstipulatis, alii? stipulis solitariis vel binis lanceo- 

 late subulatis secus caulem breviter decurrentibus instructis ; pedun- 

 culis 2-3-florisfolium raro superantibus ; calycis lobis hia^qualibus ; 

 legumine ovali glaberrimo. — Santa Catalina Mountains, South Ari- 

 zona, Pringle. This is from an interesting collection made by Mr. C. 

 C. Pringle, in the southern part of Arizona, in the summer of 1881. 



Dalea Lemmoni, Parry in coll. D. hrachystachi affinis (vide PI. 

 Wright, ii. 40), gracilior ; foliolis 3-5-jugis paullo angustioribus ; 

 spicis longius jDedunculatis ovatis ; bracteis (exterioribus fere glabris) 

 calycisque lobis longius aristato-productis, illis insigniter albo-plumosis ; 

 corolla ut videtur purpurascentes. — Near Fort Bowie, Apache Pass, 

 South Arizona, Lemmon, 1881. This and numei'ous following species 

 form a part of the fruits of two laborious and trying explorations in 

 Southern Arizona, made by Mr. J. G. Lemmon and Mrs. Lemmon. 

 This interesting disti-ict has been made accessible by the opening of 

 the Southern Pacific Railroad, the directors of which have rendered 

 very essential and highly appreciated service to science by the facili- 

 ties which they have afforded to the above-mentioned and to other 

 botanists. 



Dalea Ordi^. D. alhijlorce sat similis, sed glabella, caulibus suf- 

 fruticosis foliisque tantum puberulis ; foliolis saepius angustioribus ; 

 spicis numerosioribus brevius pedunculatis ex ovata cyliiidraceis 

 tenuiter sericeis ; bracteis minoribus ; ealycis lobis lato-subulatis tube 

 glandulis insigniter notato fere dimidio brevioribus ; corolla la^te alba. 

 — Plains near Bowie and Rucker Valley, S. Arizona, Lemmon, 1881. 

 Also collected in the previous year by Mrs. Dr. Ord, whose name this 

 handsome and abundantly florifcrous species may commemorate. 



