UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



BOTANY 



Vol. 6, No. 4, pp. 51-77 Issued August 3, 1914 



PLAXTAE :\IEXICAXAE PURPUSIAXAE, VI 



BY 

 TOWNSHEXD STITH BRAXDEGEE 



The collection of plants gathered during the year 1913 was made 

 mainly in the State of -Chiapas, in a region of almost incessant 

 tropical summer rains, evidently botanically unexplored and certainly 

 conducive to sickness as exemplified by the personal experience of 

 Dr. Purpus, whose severe illness caused loss and iiijiii'y to many of 

 his specimens. 



"Whenever any of the following new species came from any other 

 locality than Chiapas the state is indicated, otherwise Chiapas is the 

 habitat. 



Tradescantia parvula sp. nov. 



Radix fibrosa: eaulil)us erectis. 4-5 cm. altis, apice florigeris, 

 paululum pubescentibus : foliis oblongo-lanceolatis, glabris, ca. 15 mm. 

 longis, •4mm. latis; vaginis ca. 5mm. longis, parum pilosis; pedunculis 

 brevibus, 4— 8-floris ; pedicellis congestis, ca. 4 mm. longis ; sepalis 

 ovato-acutis, ca. 4 mm. longis. sparsim glanduloso-hirsutis; petalis 

 carneis sepalis aecpiantibus; filamentis inae(iua]il)us, barbatis; 

 staminum breviorum antheris dissimilibus : eapsula 3-loculari, loculis 

 2-spermis. 



Collected at Boca del ]\Ionte, Puebla, growing in moist soil. No. 

 6486. Type, Herb. Univ. Calif., No. 155258. 



Aristolochia ferruginea sj 



). nov. 



Suffruticosa, volubilis : caulibus sulcatis, setis ferrugineis, paten- 

 tibus, instructis: foliis ovato-acutis. margine integris, ciliatis, basi 

 iiicisis sinu profondo auriculas rotundatas separante, supra glabris. 

 sul)tus i)ubescentibus. laminis ca. 11cm. longis, 8 cm. latis; petiolis 



Vi.-\ii,vii,'.' 



