DEC. 1907. SPERMATOPHYTES FROM MEXICO GREENMAN. 249 



Mature capsules large, 3.5 to 4 cm. long, subcylindrical or obtusely 

 triangular, sliort-acuminate at the apex; valves dorsally pale- 

 stramineous, glabrous, i-nerved, recurved and somewhat 

 spirally twisted ; exocarp readily separating from the endocarp ; 

 seeds including the coma about 3 cm. long. MEXICO. State 

 of Yucatan: Izamal, 21 February, 1906, /. M. Greenman, no. 

 404 (hb. Field Mus.). 



TRADESCANTIA FLORIDANA Watson, Proc. Am. Acad. xvii. 381 (1882). 

 Tradescantella floridana Small, Fl. Southeastern U. S. 238 



(1903)- 



Dr. Sereno Watson very clearly defined the above species 

 and pointed out the characters by which it is readily distinguished 

 from T. gracilis HBK. to which it was referred by C. B. Clarke 

 in DC. Monogr. Phaner. iii. 297 (1881). The examination of 

 a considerable number of specimens from Florida and elsewhere 

 shows that Dr. Watson's species retains the distinctive characters 

 originally ascribed to it without any evidence, at least as far 

 as yet observed by the writer, of intergradation with the South 

 American species. It seems best therefore to regard T. flori- 

 dana Watson as well worthy of specific rank. The following 

 specimens are identical in every detail with Dr. Watson's species. 

 MEXICO. State of Yucatan: Izamal, Dr. Geo. F. Gaumer, no. 

 573 (hb. Field Mus.); Chichankanab, Dr. Geo. F. Gaunter, no. 

 1855 (hb. Field Mus.). This species has not been recorded 

 hitherto from Yucatan. 



SMILAX MOLLIS Humb. & Bonpl. in Willd. Sp. PI. iv. 785 (1805); 

 A. DC. in DC. Monogr. Phaner. i. 67 (1878); Hemsl. Biol. Cent.- 

 Am. Bot. iii. 365 (1884). 



Mature fruiting specimens of this species were collected on 

 old sand dunes along the shore, north of the City of Vera Cruz, 

 24 January, 1906, /. M. Greenman, no. 116 (hb. Field Mus., 

 and hb. Kew). The mature fruit in the fresh state is bright 

 red. 



I am indebted to Lieut. -Col. David Prain, Director of the 

 Royal Botanic Gardens, Kew, for the identification of this 

 plant. 



POUZOLZIA PRINGLEI Greenm. Proc. Am. Acad. xxxiii. 476 (1898). 

 This species, hitherto known only by Mr. Pringle's no. 6736 

 from Tomellin Canyon, has been recollected at El Parion, Dis- 

 trict of Etla, Oaxaca, Mexico, altitude 1,400 m., 2 September, 

 1906, C. Conzatti no. 1551 (hb. Field Mus.). While Senor Con- 

 zatti's specimens present no additional characters, yet the collec- 

 tion records a second station towards mapping the distribution 

 of the species. 



PSITTACANTHUS AURicuLATus, Oliver, ace. to Eichl., in Mart. Fl. 

 Bras. v. II, 25 (1866). Loranthus auriculatus D. Oliver in 

 Kjoeb. Vidensk. Meddel. 1864, p. 174. 



