CO.\'TRIBUTIONS TO UTSTHRX HOT AS Y. 3 



at Hackberry, Northern Arizona. ,May 26th. 1884. This differs 

 from the type in having narrowly lanceolate and acute leaves, 

 acuminate below, and narrowly oblouje;- acute bract.s. 



Abronia fragrans var. elliptica i E. Xcls). A. elliptica E. 

 Nelson Torrey Bulletin 26. 7. The typical from of A. fragrant 

 has acute bracts and leaves. The \ariety is the cc^nmon form of 

 the Great Basin, and has broadly elliptical to nearly round and en- 

 tirely pointless and rounded bracts. It almost passes into A. nana 

 throug-h the following variety. 



Abronia fragrani var. pteroc&rpa. Stems a f<x)t long; 

 leaves and habit of A. fragrans hut fruit that of A. nana; bracts 

 nearly round and very large. The type is from my collection 

 at Cottonwood, Utah, near Johnson's Pass. 5.60x3 ft. alt. June 6th. 

 iQoo, growing in sand. Also collected by liishop many ,\ears ago 

 in southern Utah. Connecting forms are my numbers 5096 col- 

 lected near St. George, Utah. April 24th. i8()4, in sand: also 

 Washington, southern ITtah, April 14. 1880: also 5149 ay collected 

 at Silver Reef, southern Utah. May 3rd. 1894: 5261U, collected 

 at Springdale, southern Utah, in sand .May 17th. 1894; 52842. col- 

 lected at Kanab, southern Utah. May 27. 1894, in sand. 



Abronia augulata Jones is A. pogonantha Heimerl. 



OXYTHECA. 



This genus has been the subject of nnich controversy and un- 

 certainty and has been persistently confused bv the reference of 

 two of its species to Eriogonum. and by the uncertain reference of 

 O. inermis, now to one genus and now to the other. By properly 

 separating the species the habit, awns, pubescence and bracts be- 

 come good generic characters as well as the apparently monoe- 

 cious flowers, though a few species of Eriogonum are monoecious. 



The generic characters are: pubescence never woolly, nor 



