JAN. 1898. FLORA OF YUCATAN MILLSPAUGH. 391 



Pithecoctefcium hexagonum de C. Prod, ix., 195. Xnetoloc. 

 " Vine 50 feet, common in the forests about Izamal, the creamy- 

 white flowers produced in May and June" (702). Mr. J. H. 

 Thompson sends me a fine example of the fruit, remarking that 

 the Mayas use the seeds as a remedy for frontal headache, by 

 moistening and applying them to the forehead or temples accord- 

 ing to the location of the pain. 



Tabebuia sp. Xha-hau-che. 



"Tree 30 feet high, rare in the forests of Buena Vista Xbac, 

 April" (1048). Flowers only collected. 



TECOMA STANS Juss. Gen. 139. 



Calcehtoh and Tunkas, bush 6-7 feet high, March u, 1890 

 (Stone, 258, in Herb. Acad. Sci. Phila.). 



PEDALIACE^:. 



MARTYNIA DIANDRA Glox. Obs. t. i. 



At the Hacienda Saragossa, Sept. 8, 1865 (Schott, 623). 



ACANTHACE^E. 



BOUCHEA PRISMATICA (Linn.) Kuntze Rev. Gen. 502. 



" Herb 4 feet high, common at Yaxcaba and Tekax, October" 

 (ii39). 



BRAVAISIA TUBIFLORA Hemsl. 



A common bush on the sand hills of Progresso, March 29, 1890 

 (Stone, 287, in Herb. Acad. Sci., Phila.). 



DIAPEDIUM ASSURGENS (Linn.) Kuntze, Rev. Gen., 485. Pensamienta. 

 Suburbs of Merida, Dec., 1864 (Schott, 154}. 



HENRYA COSTATA A. Gray. 



Tetramerium costatum. Tunkas, March 3, 1890; 2 feet high, 

 flowers yellow striped above with reddish brown (Stone, 244, in 

 Herb. Acad. Sci., Phila.). 



RUELLIA ALBICAULIS Bert. Spreng. Syst., ii., 822. 

 Merida, Nov. 1864 (Schott, 2}. 



Ruellia geminiflora H. B. K. Nov. Gen. et. Sp. ii., 240. 



Tekanto, flowers lilac, only one plant seen, Feb. 27, 1890; 

 Tunkas common, March 3, 1890 (Stone, 185, 242, 247, in Herb. 

 Acad. Sci. Phila.). Dr. Gaumer's 384, collected Oct. 1895 near 

 Izamal, and referred on page 320 doubtfully to R. Tweediana, is 

 doubtless also this species. 



RUELLIA TUBEROSA Linn. Sp. PI., 635. Cabal- Yaxnic. 



Merida at Quinta del Obispo, Nov. 24, 1864, and April 13, 

 1865 (Schott, 45, 282). Izamal, Feb. 28, 1890 (Stone, 254, in 

 Herb. Acad. Sci. Phila.). 



