[1885. PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM, 493 



Mimosa Lindheimeri, horeaUs, Muncifera. 



Dalea formosa. 



Coldenia Greggii and canescens. 



Celtis pallida. 



Microrhamnus ericoides. 



Lippia Wrightii, lycioides, graveolens. 



Salvia Greggii. 



Lonicera dumosa. 



Anisacanthus Thurberi. 



Leucophyllum Texanum and minus. 



Berheris irifoUata. 



Buddleia marruhiifolia. 



Mortonia scahrella. 



Dicrourus difftisus. 



Krameria canescens, parvifolia, and var. ramossissima. 



Flourensia cernua. 

 Nolina Texana, Yucca haccata and Sotol are common. Lechuguilla, 

 a form with low, slender stems and geminate flowers, besets the hill- 

 sides ; higher up is the large Maguey {Agave Wislizeni) already noticed 

 in the Guadalupe and Limpio Mountains, here with stout stalks 15 to 

 18 feet high. 

 Of the flowering herbs the most characteristic are : 



Aquilegia ehrysantha. 



Mirahilis Wrightii. 



Boerhaavia paniculata and ereeta. 



Nicotiana trigonophylla. 



Linum rigidum and rnpestre. 



Menodora scabra, pubens, longiflora. 



Ahutilon Wrightii and crispum. 



Anoda cristata. 



Pavonia Wrightii. 



(Enothera pinnafijida, tuMcola, Greggii. 



Gaura coccinea and sinuata. 



Phacelia congesta and integrifolia, 



Dalea frutesceiis, Wrightii, lachnostachys, aurea^ mollis^ rubescens. 



Hosacliia puberula. 



Indigofera Lindheimeriana. 



Desmanthus velutinus. 



Rhynchosia Texana. 



Galium Wrightii. 



Eriogonum Abertianum, annuum, rotundifolium, Havardi. 



Thamnosma Texanum. 



BOFECILLOS MOUNTAINS. 



About 15 miles below Presidio del Norte, begins the high, grassy pla- 

 teau of the Bofecillos, drained, as already seen, by Ternero and Grape- 



