1915] Brandegee: Plantae Mexicanae Purpusianae, VII 179 



Acacia picachensis ssp. nov. 



Frutex glaber: aculeis brevibus pftiolaribus reciirvis: foliis ca. 1 m. 

 lonfris. pinnis 7-12-juuis; folittlis 10-20-j\igis, ca. 7 mm. longis. obtiisis; 

 petiolis medio glandula elliptica eoncava praeditis : racemis axillaribiis 

 vel paniculam terminalem formantibns: eapitulis diametro ca. 7 mm., 

 albis : legiimine basi ciineato. margine siniiato, ca. 6 cm. longo. 1.5 em. 

 lato. piano. 



In general appearance this species .suggests A. fiUcina AYilld. but 

 differs in having petiolar glands and stipnlar spines. Collected at 

 Picacho, Oaxaca. No. 7204. Type, Herb. Univ. Calif. No. 174960. 



Cassia (Lasiorhegma) enneandra sj). i ov. 



Frutex : ramulis juvenibus breviter viscoso-hirsutis : f oliolis uni- 

 jugis interdum bijugis late obovatis. ca. 7 mm. longis, 6 mm. latis, 

 glabris : petiolis ca. 2.3 cm. longis. glandulis petiolaribus nullis: flori- 

 bus in racemis paucifioris ramos terminautibus, pedicellis viscoso- 

 hirsutis, 1-2 cm. longis ; calycis segmentis paululum pubescentibus : 

 antheris 9, oblongis subaequalibus. loculis apiee poro deraum secus 

 suturas laterales villoso-barbatas usque ad basim dehiscentibus ; fila- 

 mentis brevibus: ovario albo-sericeo ca. 5-ovulato: leguniine ca. 3 cm. 

 longo. 



Collected on rocky slopes of Cerro de Picacho, Oaxaca. No. 7136. 

 Type, Herb. Univ. Calif. No. 173400. 



Cassia trichoneura sp. nov. 



Frutex: ramulis juvenibus pubescentibus: foliis ca. 6 cm. longis; 

 petiolis pubescentibus ; foliolis 3-4-jugis, obovatis, ca. 2 em. longis, 

 1.3 cm. latis, margine ciliatis. utrinque fere glabris; glandula inter 

 jugum intimum vel ad petiolum posita ; stipulis lanceolatis deciduis : 

 pedunculis in axillis binis. unifloris pubescentibus, ca. 3.5 cm. longis : 

 tloribus amplis; sepalis glabris ovatis inaequalibus ; petalis unguiculatis 

 extus ad venas pubescentibus. majoribus ca. 1.5 cm. longis; staminibus 

 3 longioribus rostratis. 4 brevioribus brevissime curv^ato-rostratis, 

 staminodiis 3: ovario stipitato albo-sericeo: legumine piano recto, mar- 

 gine sinuato, inter semina artieulatim secedenti, 5-7 cm. longo, ca. 

 7 mm. lato. 



This Ca.ssia is related to C. hiflora L.. from which it differe in having 

 an articulated pod with a sinuate margin, pubescent veins on the petals 

 and differently beaked anthers. Collected near San Geronimo. Oaxaca. 

 No. 7153. Type. Herb. Univ. Calif. No. 175075. 



