488 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. [1885. 



Rhus virens and copallina. 



Mortonia scabrella. 



Chrysactinia Mexicana. 



Diplopappus ericoides. 



Brickellia Wrightii and brachyphylla. 



Thymophylla Greggii. 



Parthenium infanum. 



JEupatorium Wrightii. 



Heliomeris tenuifolia. 

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

 conspicuous and characteristic are — 

 On foot-hills : 



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



Linum Berlandieri and rigidum. 



Balea aurea and fruteseens. 



Peteria scoparia. 



Salvia chamazdryoides,farinacea and lanceolata, 



Seymeria scabra. 



Pentstemon barbatus, var. Torreyi. 



Sphwralcea Fendleri and var. dissecta. 



Erysimum asperum. 



Menodora longiflora and heterophylla. 



Phlox nana. 

 On the summit and upper slopes : 



Silene laciniata, var. Greggii. 



Frasera speciosa. 



Geranium cwspitosum. 



Campanula rotundifolia (with white flowers). 



Gilia aggregata, rigidula (and var. acerosa). 



Erysimum . 



In canons : 



Linum Greggii. 



Ipomwa Lindheimerij coccinea (var. hederifolia), Mexicana, 



Maurandia Wislizeni. 



Mirabilis multiflora. 

 Composites (herbaceous) : 



Artemisia Ludoviciana and dracunculoides. 



Liatris punctata. 



Baccharis Havardi (Gray, n. sp.). 



Biddellia.tagetina. 



Eymenatherum acerosum and tenuifolium. 



Gallardia pinnatifida. 



Leucampyx Newberry i (on summit). 



Berlandiera lyrata. 



Engelmannia pinnatifida. * 



Thelesperma longipes and gracile. 



