Blake Revision of Polygala 95 



117. P. exserta, sp. nov. Annua tenuis erecta glaberrima sim- 

 plex vel supra parce ramosa 11.5-21.5 cm. alta. Caulis teres vel 

 supra subangulatus non alatus. Folia omnia alterna linearia mu- 

 cronata crassiuscula sessilia 3-16 mm. longa 0.25-0.5 mm. lata. 

 Racemi densiflori l-(demum)4 cm. longi, bracteis et floribus in- 

 ferioribus deciduis. Flores rosei 5.5-6.5 mm. longi. Sepala albida 

 oblonga obtusa inferiora breviora. Alae roseae oblongae submu- 

 cronatae 3-nerviae 5 mm. longae 1 mm. latae. Carina angusta ad 

 6.2 mm. longa, apice flavido-brunnea ; crista e lobis 1-jugis ovato- 

 lanceolatis obtusiusculis porrectis integris constans. Capsula an- 

 guste oblongo-ovata albida anguste marginata ad septum glandu- 

 loso-punctata 3.5 mm. longa ad 1.2 mm. lata. Semen conicum 

 sericeo-comosum 1.1 mm. longum. Arillus ad 0.3 mm. longus, lobis 

 2 linearibus appressis. Trinidad: Fort George, 12 Sept. 1847, 

 Crueger (K); savanna de Arito, July 1848, Wm. Purdie 121 (K); 

 without locality, 1877-80, Fendler 267 (GK: type coll.); without 

 locality, Crueger (G). The Crueger plant (hb. Kew.) was in- 

 cluded in P. longicaulis by Grisebach. All the specimens in hb. 

 Kew. are labelled P. adenophora DC. by Bennett, but that is a 

 South American species with a several-lobed crest. T. 2. Fig. 71. 



118. P. variabilis HBK. Erect slender annual, sparsely 

 branched, 1.7-6 dm. high, the stem angled, obscurely pedicellate- 

 glandular especially below. Leaves all alternate, linear, cuspidu- 

 late at the acute or acuminate apex, re volute, punctate, 1 -nerved, 

 glabrous, 3.5-9 mm. long, 0.4-0.7 mm. wide, on petioles 0.5 mm. 

 long. Racemes somewhat dense, conic-capitate, 3-7 mm. long, 7 

 mm. thick, the axis becoming 1.5-7 cm. long; pedicels 0.6-0.8 mm. 

 long. Flowers white or purplish, 2.7-3.6 mm. long. Upper sepals 

 ovate, blunt, with 2-3 basal glands, 1.5-1.9 mm. long; the lower 

 ovate, obtuse, with several dorsal glands along costa, 1-1.4 mm. 

 long. Wings elliptic, rounded or rarely bluntly mucronulate at 

 apex, cuneate scarcely clawed at base, 3-nerved, more or less gland- 

 bearing along costa, 2.7-3.6 mm. long, 1.4-2.1 mm. wide. Keel 

 2.7-3.6 mm. long, gland-bearing; crest of 3-4 pairs of lobes, the 

 posterior lanceolate, simple or bifid, the anterior linear, deeply 

 forked or entire. Upper petals obliquely ovate-lanceolate, obtuse, 

 equalling keel. Capsule ovate-oblong, obtuse, bearing about two 

 rows of oval glands each side of septum, 2.6-3.2 mm. long, 1.2-1.3 

 mm. wide. Seed conic, silky-comose, 2.7 mm. long (including 



