350 FIELD COLUMBIAN MUSEUM BOTANY, VOL. i. 



CYCADACE.E. 



Cycas circinnalis Linn. Sp. PL, 1658. Teoiczotl. 



Cultivated at Merida, March n, 1866, not in flower (Schott, 

 748.} 



GRAMINEAE.* 



Andropogon hirtiflorus Kth. Revis. Gram., ii., 569. 

 "Tekax, on old fields, 3 feet high, Sept." (1134.) 



Andropogon semiberbis Kth. Enum., 489. 



"Two feet high, abundant on stone walls/ house roofs and on 

 the ancient ruins, rare in fields, about Izamal," Nov. (1037.) 



Andropogon sorghum Drummondii Hack, de C. Monog. Phan. 

 vi., 507. 



"Three feet high, in an old field at Buena Vista Xbac," 

 April (1053.) 



Anthephora elegans Schreb. Besch. Graes., ii. , 105. 



" Common in old fields near Izamal, i foot high." Oct. (1030). 

 Merida, Sept.; and Hacienda San Rafael, Oct. 1 865 (Schott, 549). 



Aristida nigrescens Presl., Rel. Haenk., i., 223. 



Merida, Aug. and Oct. 1865 (Schott, 601, 656 in part"). 



Arundo Donax Linn. Sp. PI., 81. 



" Common on the coast in aguadas and cenotes, often culti- 

 vated. 20 feet high" (1141). 



Bouteloua Americana (Sw.) Scribn. loc. cit. 306. 



Aristida Americana Sw. Obs. 41, t, f. 2 ; 1791 ex Kunth. 

 Sinebra repens H. B. & K. Nov. Gen. et. Sp. , i. 172, t. 52; 1815. 

 " Brushlands near Izamal, uncommon, 3 feet high." Oct. (1036). 



Bouteloua bromoides Lag., Gen. et Sp. Nov., 5. 



Merida, Sept., Oct. and Nov., 1865 ; and at the ruins of 

 Uxmal Sept. 16, 1865 (Schott, 656, 742, 659). Depauperate 

 specimens from Tekanto, Feb. 28, 1890 (Stone, 189, in Herb. 

 Acad. Sci. Phila.) 



Bouteloua disticha (H. B. K.) Benth. Jour. Linn. Soc. xix., 105. 

 Polyodon distichum H. B. K. Nohcacab, Nov. 24, 1865 (Schott, 

 741). Presl. referred this to Bouteloua bromoides H. B. K. 



BOUTELOUA TRIJENA (Spreng.) Scribn. Proc. Phila. Acad. 1891, 307. 

 Triana racemosa H. B. K. "Two feet high; uncommon on 

 old fences and low shrubbery, upon which it depends for sup- 

 port." Izamal, Aug. (1026). Nohcacab, Nov. 24, 1865 (Schott, 

 740} Tekanto, Feb. 25, 1890 (Stone, 210, in Herb. Acad. Sci. 

 Phila.). 



For synonomy see p. 10, Contrib. I. 



*Determined by Prof. F. Lamson-Scribner. 



