1919] Brandcgee: Plantae Mexicanae Purpusmnae 501 



Dalbergia Purpusii sp. nov. 



Frutex scandens ramis juvenibus f usco-puberiilis : foliis 7-9- 

 foliolatis ca. 5 em. longis; foliolis petiolulatis discoloribus oblongo- 

 ovatis vol cinieatis apice retusis ca. 1.8 era. longis, 1 cm. latis: inflo- 

 reseeutia cyinoso-paniculata axillari qiiam foliis breviori ; ealyeo 5- 

 dentato dente int'eriori niulto longiori ; vexillo apice retuso; staminibus 

 9 aut 10; legumine piano recto 2-5 em. loiigo, ca. 1 cm. lato apice 

 acumiuato, basi in stipitem brevem angustato, 1-2-spermo. 



Collected near Zacuapan, Vera Cruz. No. 7742. Type, Herb. 

 Univ. Calif. No. 187843. 



Mascagnia rupicola, .sp. nov. 



Frutex rupes praeruptas ea. 15 m. altas scandens: caulibus fuscis 

 juvenibus tomentosis: foliis ellipticis basi obtusis vel cuneatis, apice 

 mucronatis interdum emarginatis utrinque glabris margine tomentoso- 

 ciliatis, ca. 3.5 cm. longis, 1.8 cm. latis: racemis lateralibus, ca. 5- 

 floris 2.5-3.5 cm. longis; pedicellis ca. 1.5 cm. longis; calycis glandulis 

 magnis; petali limbo oblongo ca. 6 mm. longo basi aurito margine 

 eroso: fructu alas laterales confluentes flabelliformes includenti, ca. 

 1.9 cm. lato ; ala dorsali deficienti. 



The specimens bear vestiges only of the tlowers and mature fruit. 

 According to the collector's notes, this plant was found crawling up 

 steep rocks to the height of 50 or 60 feet after the manner of Ficus 

 repens, and consequently making it difficult to obtain specimens. 

 Collected near Zacuapan, Vera Cruz. No. 7759. Type, Herb. Univ. 

 Calif. No. 198188. 



Gouania viridis, sp. nov. 



P^rutex ramis tenuibus sursum pubescentibus : foliis oblongo-ovatis, 

 basi rotundatis vel subcordatis, apice acinninatis margine glanduloso- 

 serratis, subtus ad venas minute pubescentibus, 5-8.5 cm. longis. 2-3.5 

 cm. latis, stipnlis lanceolatis ca. 2 mm. longis; petiolis ea. 4 mm. longis: 

 racemis usque ad 11 cm. longis, rhachi jnibescenti hand ciirifera. 

 Fructus deest. 



This is a bright green plant nearly glabrous and fpiite distinct 

 from other ^Mexican species. Collected near Zacuapan, Vera Cruz, 

 growing on rocky banks of barrancas. No. 8032. Tyjie, Herb. Univ. 

 Calif. No. 198428. 



Centradenia chiapensis, sp. nov. 



Caulibus glalu'is fetragonis ea. 3 dm. altis : foliis inae(|uali-ovato- 

 acuminatis basi cuneatis, discoloribus in eodem jugo disparibus, altei'o 



