Blake Revision of Polygala 33 



vel etiam glabrata 7.5-9 mm. longa 5.7-6 mm. lata. Semen dense 

 subsericeo-pilosum 4.5 mm. longum. Arillus 1.7 mm. altus, umbone 

 ad 0.7 mm. alto, margine scarioso subappresso irregulariter lobu- 

 lato lobo dorsali vix indicato. Rose! Contr. U. S. Nat. Herb, 

 xiii. 307 (1911). P. calcicola Rose! 1. c. x. 122. t. 37 (1906), not 

 Chod. Monog. ii. 326 (1893). Puebla: La Canada, near Tehua- 

 can, 7 Aug. 1897, Pringle 7477 (type coll.: G). T. 1. Fig. 20. 



35. P. brachyanthema, sp. nov. Pluricaulis e basi fruticulosa 

 1.7-3.3 dm. alta. Caules sparse ramosi ramis erectis patenter 

 incurvo-pubescentes virides. Folia infima obovata mucronata 3-7 

 mm. longa 1.5-4 mm. lata; media et superiora oblongo-elliptica 

 subobtusa valde mucronata basi cuneata trinervia sparse incurvo- 

 patenti-pubescentia 10-15 mm. longa 3^.8 mm. lata in petiolis 1 

 mm. longis. Racemi terminates et quasi extra-axillares subrecti 

 vel parum flexuosi 12-22-flori 5-8.5 cm. longi. Flores 4.5-5 mm. 

 longi. Sepala lanceolato-ovata acuminata subpatenti-pilosula 2.5- 

 3 mm. longa. Alae ovales obtusae vel subacutae vix unguiculatae 

 viridescentes subpatenti-pilosulae et ciliolatae 4.5-5 mm. longae 

 2.3-2.5 mm. latae. Carina apice flavida ceterum purpurascens 

 glabra alas aequans. Petala superiora oblongo-spathulata apice 

 purpurascentia. Ovarium ciliatum. Capsula elliptica emarginata 

 basi rotundata glaberrima (margine ciliolato excepto) 7-7.7 mm. 

 longum 5.5-6 mm. latum. Semen (submaturum) breviter pilosum 

 3.5 mm. longum. Arillus 1 mm. altus, umbone ad 0.5 mm. alto, 

 margine scarioso irregulariter crenato-lobulato in lobum brevem 

 dorsalem horizontalem producto (margine dorsali 1.6 mm. longo). 

 San Luis Potosi: Minas de San Rafael, May 1911, Purpus 5169 

 (type coll.: BG). T. 1. Fig. 21. 



36. P. oophylla, sp. nov. Caules pauci e basi fruticulosa erecti 

 vel suberecti ramosi 2 dm. alti et ultra dense pubescentes pilis 

 patenti-incurvis. Folia infima elliptica vel elliptico-obovata 3.5-4 

 mm. longa 2.8-3 mm. lata; media et superiora ovata acuta vel 

 subacuta mucronata basi rotundata pubescentia pilis incurvis 

 (eorum in pagina superiore basibus subtuberculatis) 11-22 mm. 

 longa 3.5-10 mm. lata, in petiolis 1-1.5 mm. longis. Racemi 9-30- 

 flori 4-7 cm. longi et ultra. Flores 6.5 mm. longi. Sepala oblongo- 

 ovata acuta sparse incurvo-patenti-pubescentia 2.3-2.5 mm. longa. 

 Alae orbiculari-ovales rotundatae basi breviter unguiculatae ubique 

 vel solummodo apicem versus incurvo-patenti-pubescentes purpu- 



