326 



GENUS ATRIPLEX. 



MINOR VARIATIONS AND SYNONYMS. 



1. Atriplex acanthocarpa var. cuneata Jones, Contr. West. Bot. 11:20, 1903. — Based up)on A. cuneata 

 Nelson, which is here treated as a subspwcies of A. nuttalli. No reasons were given for the reduction to acan- 

 thocarpa. If this arrangement were accepted, then all of the forms of nuttalli should go with it. This seems 

 unnecessary, for although the two are closely related, the heavy and strictly entire leaves of cuneata and its 

 allies are very unlike those of acanthocarpa. Even when the fruiting bracts are heavily appendaged, as in 

 cuneata, and therefore exceptionally large in total expanse, the body itself is never so thick nor turgid as in 

 acanthocarpa. 



2. A. BUxiFOLiA Rydberg, Bull. Torr. Club 39:311, 1912.— A. nuttalli huxifolia. 



3. A. CUNEATA Nelson, Bot. Gaz. 34: 357, 1902. — A. nuttalli cuneata, with the exception of two of the cited 

 sjjecimens, i. e., Wright 573, which is A. acanthocarpa, and the plant from Holbrook, Arizona, which is A. 

 obovata. 



4. A. EREMicoLA Osterhout, Bull. Torr. Club 25: 284, 1898. — A. nuttalli gardneri. The type, which came 

 from southern Wyoming, is a plant in which the fruiting bracts are very smooth, the edges nearly parallel, 

 but cuneately narrowed at base and slightly enlarged at summit through the development of herbaceous 

 teeth. (Fig. 46, w to z.) 



Oq 



-Variation in fruiting bracts of Atriplex nuttalli: a to d, from one plant of subspecies typica (Centennial, Wyoming, 

 128609 UC); e to g, from another plant of typica (Price. Utah, 110313 UC); h to k, from one plant of subspecies 

 tridentata (west of Rock Springs, Wyoming. 205252 UC) ; I to p, from one plant of subspecies gardneri (Little 

 Laramie River, Wyoming. 35325 R) ; q to v, from another collection of gardneri. all probably from a single plant 

 (Laramie, Wyoming, 205354 UC); w to z, from another collection of gardneri (southern Wyoming, type of A. 

 eremicola, minor variation 4). All X 2. 



5. A. FALCATA Standley, N. Am. Fl. 21:68, 1916.— A. nuttalli fakata. 



6. A. FRUTicuLOSA Osterhout, Bull. Torr. Club 25:207, 1898. — Changed by Osterhout to A. eremicola 

 because of the earher A. fruticulosa Jepson. (See under No. 4.) 



7. A. GARDNERI Standley, 1. c, 66, 1916. — Based upon Obione gardneri, which see. 



8. A. GARDNERI var. TRIDENTATA Macbride, Contr. Gray Herb. N. S. 53: 11, 1918. — Based upon A. triden- 

 tata, which see. 



9. A. GORDONi Hooker, Jour. Bot. and Kew Misc. 5:261, 1853. — Based upon Obione gardneri, which see. 

 The specific name was changed by Hooker, since it was Gordon (not Gardner) who collected the type specimen. 



10. A. NEOMEXiCANA Standley, 1. c, 67, 1916. — A form of A. nuttalli differing from subspecies cuneata, 

 with which it was collected in northwestern New Mexico, only in the remarkable foliaceous development of 

 the free tips of the bracts. These are orbicular-rhombic and as wide as or wider than the body. The relation 

 of this to the usual form requires further field study. 



11. A. NUTTALLI var. ANOMALA Jones, Contr. West. Bot. 11: 19, 1903. — The same as A. nuttalli falcata, 

 except that the fruiting bracts are smooth on the faces and margins, or only occasionally with a few teeth or 

 murications. According to Jones, intermediates occur in the Green River Basin, Wyoming, and in western 

 Utah. Most of the specimens cited under subspecies falcata, including the type, exhibit both appendaged 

 and smooth bracts. Type locality of anomala, Dolly Varden Smelter, eastern Nevada. 



12. A. NUTTALLI var. falcata Jones, 1. c. — A. nuttalli subspecies /areata. 



13. A. NUTTALLI var. UTAHENsis Jones, 1. c. — A narrow-leaved form of A. nuttalli typica. The description 

 applies better to subspecies tridentata, but the leaves in the type specimen are spatulate rather than linear, 

 and very obtuse. Representative leaves measure 2 to 2.5 cm. long by 3 to 5 mm. wide at the broadest part, 

 i. e., above the middle. The type is from Salt Lake City, Utah (Jones 1760). 



14. A. OBLANCEOLATA Rydberg, Bull. Torr. Club 31:403, 1904.— A low form of A. nuttalli typica and 

 common with it. Described as differing also in having short-petioled leaves, brown staminate flowers, and a 



