L22 CONTRIBUTIONS PROM nil NATIONAL OERBARIUU 



:>inthus si haitiuTi S. Wats B 



B R at Lm. Acad. 22: 469. 1887. 



lintiius schiedeana I ag ■ 

 Bun :.•!■ in !»('. Monog. Phan. 4:57. l M 



Terebintb.ua acblecbtendalii I aglei I; 



B lalii Englerin DC. Monog. Phan. 4:64. L888. 



binthua aeseiliflora Engler I; 



flora Englerin DC. Monog. Phan. 4:65. L8fi 



Terebinthus simaruba 1.. W '. 1 . Wight. 

 Pistacia simaruba L. 8p. PI. 2: L026. L753. 



binthus broumii Jacq. Bnum. PI. Carib. 18. L760. 



I.. Sp. PI. ed. 2. 1 : 471 . 1 762. 



Terebinthus submoniliformis I Engler I: 



Bursera submoniliformis Engler in DC. Monog. Phan. 4:65. L8£ 



Terebinthus subtrifoliata Rose, sp. nov. 



I.mw Bhrub, glabrous throughout; branches dark; leaves simple or trifoliate, cune- 

 ate at base, rounded at apex, crenate, glabrous on both Bides, 25 nun. or less Long; 

 flowers "lit- to three in the a\il> of the leaves; pedicels short 2 to .". nun. long) 

 reflexed in fruit; fruit somewhat 3-angled, glabrous, •"> nun. long. 



Type I . S. National Herbarium no. S01971, collected by J. N. Rose west of Bola- 

 fios, Jalisco, September 17. 1897 no. 3014). 



Resembling Bomewhat T. rhoifolia in its variable Leaflets, 1 >ut they arc not pubes- 

 cent as in that spec 



Terebinthus tenuifolia Rose. 



Bursera tenuifolia Rose, Contr. Nat. Herb. 3:314. 1895. 



Terebinthus tomentosa Jacq. W. 1'. Wight. Elaphrium tomeniosum Jacq. 

 Enum. PI. Carib. 19. 1760. This is a South American species which may here be 



conveniently transferred. 



POLYGALACEAE. 

 THREE NEW SPECIES OF POLYGALA. 



Poly-gala calcicola Rose, sp. nov. Plate XXXVII. 



Perennial, somewhal woody at base, much branched and diffuse, LO cm. or less 

 high, with appressed cinereous pubescence; leaves all alternate Linear to oblong, 10 to 

 15 mm. I'm:-', acute, with appressed pubescence on both sides; flowers either solitary 

 or 3 to 5 in a sln.rt raceme; .". outer sepals lanceolate, acute, pubescent; wings oblan- 

 ceolate, 5 nun. long, pubescent, cream-colored; fruit orbicular to shortly oblong 

 8.5 nun. Long, glabrous except on the margin. 



Type r. S. National Herbarium 316730, collected b) C. <•. Pringle on limestone 

 hills near Tehuacan, Puebla, August 7. L897 (no. 7477). 



Perhaps nearest /'. ovaUfolia, but with the pubescence appressed and the sepals 

 more persistent, etc. 



Explanation "i Pi hi. XXXVII. — Pig. a, plant; b, calyx; e, petals; d, petals, Btamens, and ]<\>- 



til: /, pistil; g, ovary; A and /, two view - of Beed. Yvs. <i. natural size; !, to /. scale 1. 



Polyg-ala nelsoni Rose, Bp. nov. l'i vn: X X X \* 1 1 1 



stems annual. 30 to 40 cm. high, simple below, somewhat branched above, <:lal>- 

 rous; upper leaves and probably lower ones all alternate, linear, 8 to L2 mm. long, 

 glabrous and glandular, acute; inflorescence a short spike-like raceme; hractHcadu- 

 eous; 3 outer sepale shortly oblong, obtuse; wings spatulate, reddish; upper petal 

 crest with appendages at base, very hairy. 



