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. 
xii. 307 (1911). P. calcicola Rose! 1. c. x. 122. t. 37 (1906), not 
Chod. Monog. ii. 326 (1893). — Pursia: La Cafiada, near Tehua- 
can, 7 Aug. 1897, Pringle 7477 (rypE cotu.: G).—T.1. Fic. 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 34.8 mm. lata in petiolis 1 
mm. longis. Racemi terminales et quasi extra-axillares subrecti 
vel parum flexuosi 12—22-flori 5-8.5 em. longi. Flores 4.5—-5 mm. 
longi. Sepala lanceolato-ovata acuminata subpatenti-pilosula 2.5- 
3mm. 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 
longum 5.5-6 mm. latum. Semen (submaturum) breviter oiloiaie 
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 Potost: Minas de San Rafael, May 1911, Purpus 5169 
(TYPE cott.: 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 3.54 
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 em. 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- 
