A. PENTANDRA. 297 



Muertos, Porto Rico, BritUm, Cowell, and Drovm 6036 (NY, US); Pedro Uluff, JaniaiRa, flarri.i f)932 (NY, 

 US); near Willemstad, Curasao, Brillon and Hhajer 2026 (NY, US). 



14. A. I'UKHi.ENsis Standley, 1. c, 56, 1910. — The same as A. penlandra muricala, but a form with unap- 

 pendagcd braets (as in minor variation 9, ^"1. glmnerala Watson) and the staminate glomerules in naked terminal 

 spikes. The leaves are described as entire, but this varies in the type collection (although not in the type 

 specimen) as pointed out by Macbride (Contr. Gray Herb. 53:10, 1918). A duplicate of the type at the 

 University of California has leaves mostly entire, but some with a few minute dentations, and the staminate 

 infloresccnses are 1 to 2 cm. long. Type, near Tehuacan, Pucbla, Pringle 8S77 (US). 



15. A. TAMi'icENsis Standley, 1. c. — There are no .satisfactory characters upon which to separate this from 

 A. peiitandra typica. The leaves are entire, but the single collection tlius far made consists only of the ends 

 of the branches and the principal leaves are therefore unknown. In any event, this feature is much too variable 

 in the group to be of taxonomic value. The staminate glomerules are in elongated terminal spikes and panicles, 

 as is common in ■penlandra. The fruiting bracts are only 2.5 to 3 mm. long, not crested but faintly reticulated 

 on the faces. The bracts are therefore undersized for typica, and in this respect the form is closer to subspecies 

 muricala. Type, vicinity of Tampico, Tamaulipas, Palmer 332 (US). 



16. A. TEXANA Watson, Proc. Am. Acad. 9:113, 1874. — A little-known form from southern Texas which may 

 be referred to A. penlandra lypica until differentiating characters can be found. Geographically it belongs 

 between lypica and muricala, but the bracts are much too large for the latter, 3 to 3.5 mm. long by 4 to 4.5 

 mm. broad in the type, which, however, was grown in the botanical garden at Cambridge, Ma.ssachusetts, 

 from Texas seed. All of the few collections since made are from within 250 km. of the coast of the Gulf of 

 Mexico. These localities may therefore represent the western limits of lypica, which ranges thence both north 

 and south along the Gulf. A. texana can not be separated from lypica on the basis of its entire leaves as pro- 

 posed by Standley (N. Am. Fl. 21 :37, 1916), since these sometimes are sparingly dentate, as originally described 

 by Watson and, moreover, typical penlandra varies in the West Indies to forms in which the leaves are nearly 

 all entire. In addition to the type, the following belong here: Guadalupe, southwest of San Antonio, Texas, 

 Palmer 1158 (Gr, US); Corpus Christi Bay, Texas, Palmer 1159 (Gr, US); Laredo, Texas, in sandy soil, Rever- 

 chon 3682 (Gr). An earlier name for this variation is given under No. 23. 



17. A. TUBERCULATA Coultcr, Contr. U. S. Nat. Herb. 2:368, 1894. — Based upon Obione elegans tuberculosa, 

 which see in this list. 



18. A. wARDi Standley, 1. c, 56, 1916. — The types are nearly leafless plants wth no characters to differ- 

 entiate them from typical A. penlandra, except the absence of appendages on the faces of the fruiting bracts. 

 These bracts were described as only 2 to 2.5 mm. long and longer than broad. Many of the mature ones of 

 the type are fully 3 mm. long. The absence of the usually broad herbaceous margin is responsible for this 

 small size. The faces are strongly reticulated, this indicating the close relationship with subsp)ecies typica 

 and arenaria. The root is annual and the few remaining leaves are entire. Type, Galveston, Texas, Sep- 

 tember 16, 1877, Ward (US). 



19. AxYRis PENTANDRA Jacquin, Sel. Stirp. Am. 244, nQS.^Atriplex penlandra lypica. The original 

 specimen is illustrated in figure 40. 



20. Obione arenaria Moquin, Chenop. Enum. 71, 1840. — A. penlandra arenaria. 



21. O. CRISPA Moquin, 1. c, 73, 1840. — Referred to A. penlandra confinis, although both leaves and bracts 

 are much smaller in true crispa. According to Moquin, the leaves in the type, which came from Haiti, are 

 only 0.4 to 0.6 cm. long, 0.1 to 0.2 cm. wide, whitish farinose on both faces, and acutely dentate, while the 

 bracts are only about 2 mm. long. This very small-leaved form is represented by plants from Eastern Cay, 

 Turks Island, Bahamas (Millspaugh 9369, NY), in which, however, the fruiting bracts are shghtly over 3 mm. 

 long. Possibly the type specimen was immature, which would account for the small size of the bracts. The 

 name crispa is not here taken up because of the tenable Alriplex crispa Dietrich (Syn. PI. 5:536, 1852) of Asia. 



22. 0. CRISTATA Moquin, I. c. — Based upon Alriplex cristala, which see. 



23. O. ELEGANS var.? tuberculosa Torrey, Bot. Mex. Bound. 183, 1859. — A form later described as 

 Alriplex texana Watson (No. 16 of this list). 



24. 0.? KUNTHIANA Moquin, 1. c, 72, 1840. — A. penlandra muricala. 



25. O.? MURICATA Moquin, in De CandoUe, Prodr. 13»:109, 1849. — .4. penlandra muricala. 



