488 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. [1885. 



Rhus virens and copallina. 



Mortonia scabrella. 



Chrysactinia Mexicana. 



Diplopappus ericoides. 



Brickellia Wrightii and brachyphylla. 



Thymopliylla Greggii. 



Parthenium incanum. 



Eupatorium Wrightii. 



Heliomeris tenuifolia. 

 Of the large number of herbs observed in these moantains, the most 

 conspicuous and characteristic are — 

 On foot-hills : 



Nama origanifolium (on rocks, first time collected in U. S.). 



Linum Berlandieri and rigidum. 



Dalea aurea and frutescens. 



Peteria scoparia. 



Salvia chamcedryoides,farinacea and lanceolata. 



Seymeria scabra. 



Pentstemon barhatus, var. Torreyi. 



Spliceralcea Fendleri and var. dissecta, 



Erysimum asperum. 



Menodora longifiora and heterophylla. 



Phlox nana. 

 On the summit and upper slopes : 



Silene laciniata, var. Greggii. 



Frasera speciosa. 



Geranium ccespitosum. 



Campanula rotundifolia (with white flowers). 



Gilia aggregata, rigidula (and var. acerosa). 



Erysimum . 



In caSous : 



Linum Greggii. 



Ipomwa Lindheimeri, coccinea (var. hederifolia), Mexica/na, 



Maurandia Wislizeni. 



Mirabilis multifiora. 

 Composites (herbaceous): 



Artemisia Ludoviciana and dracunculoides. 



Liatris punctata. 



Baccharis Havardi (Gray, n. sp.). 



Biddellia tagetina. 



Hymenatherum acerosum and tenuifolium. 



Gallardia pinnatifida. 



Leucampyx Newberryi (on summit). 



Berlandiera lyrata. 



Engelmannia pinnatifida. 



Thelesperma longipes and gracile. 



