JAN. 1898. FLORA OF YUCATAN MILLSPAUGH. 397 



SYNEDRELLA NODIFLORA Gaertn. Fruct. ii. 456. 



Merida, at the Quinta del Obispo, Nov. 15, 1864 (Schott, 93). 

 "Herb 6-18 inches high, common in waste places near Izamal, 

 in bloom throughout the year" (359, 952). 



TAGETES PATULA Linn. Sp. PL, 887. 



On the Teocali of Kabah, Nov. 26, 1865 (Schott, 708}. Cal- 

 cehtoh, Mar. u, 1890 (Stone, 273, in Herb. Acad. Sci. Phila.). 



TITHONIA DIVERSIFOLIA A. Gray, Proc. Am. Acad., xix. 5. Arnica. 

 11 Herb 15 feet high, quite shrubby, cultivated at Izamal where 

 it blooms in November" (944). 



Tithonia tagetiflora Desv. Ann. Mus. Par., i., 46. Zum 



Merida, Dec. 3, 1864 (Schott, 68). "Herb 10 feet high, 

 abundant in old fields, producing its orange-yellow flowers from 

 Aug. to Sept." (899). 



TRIDAX PROCUMBENS CANESCENS de C., Prod. v. , 679. 



Tekanto, Feb. 27, 1890 (Stone, 212, in Herb. Acad. Sci. Phila.). 



TRIXIS FRUTESCENS P. Br. , PL Jam. 312. 



T. radialis (L) O. K. Merida, Feb. 2, 1865 (Schott, 189). 



VIGUIERA HELIANTHOIDES H. B. & K. Nov. Gen. et. Sp., iv., 226. Toll. 

 Suburbs of Merida, Jan. i, 1865 (Schott, igo). " Herb 2 to 5 

 feet high, very abundant in old fields about Izamal and Xcholac, 

 Oct. to May" (502, 557). 



Xanthium Canadeuse Mill. Card. Diet., ed. viii., 2. 



" Herb 2 feet high, uncommon near Merida where it has prob- 

 ably been introduced in foreign baled hay" (1145). 



Zexmenia Costaricensis Bth. Oerst. Kjob. Medd. 95. Sactah. 

 Between Guayalceh and Yumuo, Oct. 2, 1865 (Schott, 914)- 

 "A shrubby climber, 20 feet, on an artificial mound 8 miles 

 southwest of Izamal, Nov." (960, 962.) 



