11 s CONTRIBUTIONS PBOM PHI NATIONAL lll'i:B\KliM. 



ably establish the identity of Browne's species with Pistacia simaruba. 

 as the same references with no other description <>r citation, are riven 

 by Linnaeus for this species. Pour years after the publication of 

 Browne's work, Jacquin, L760, d Includes the same species as 73 rebinthw 

 brownii* Linnaeus in L762, 8 changed the name to Bursera gummif&ra. 

 This name, modified in spelling to Burseria gummifera, was adopted 

 by Jacquin L763.' But Bursera or Burseria, is invalid for this genus 

 imt only because it Is antedated by Terebinthus bu< because the name 

 was applied earlier* to a different genus. Another name which has 

 been used by some authors is Elaphrium, Jacquin 1760. 4 This is four 

 years later than Browne's publication of Terebinthus and even the 

 latter name has place priority in the same work in which Klaphrimn 

 appears. 



The following are the known Mexican species: 



Terebinthus aloexylon (Schiede) W. I'. Wight 

 Elaphrium aloexylon Bchiede, Linnaea 17: 252. 1843. 



Terebinthus aptera (Ramirez) 1: 



Bursera aptera Ramirez, Anal. Inst. Med. Nac 2: 16. pi. 1. 1X96. 



Terebinthus arborea Rose Bp. nov. 



Tall trees; old trunks red and smooth: young branched pabescent; leaflets 2 to 4 

 pairs. 4 to 9 cm. long, ovate, ronnded or cuneate or rarely cordate at base, more or 

 Less abruptly acuminate, the acuminum obtuse, Bomewhat pubescent on both Bides; 

 inflorescence paniculate; fruit glabrous; sepals ovate, acute, filiate: Bruit in very 

 compact clustei 



Type r. S. National Herbarium no. 302233 (Rose3259e), collected by J. X. Rose 

 between Acaponeta and Concepci6n, Tepic, July 2 (no. 1505 }, July 4 (no. 1530 ; 

 near Rosario, July 22 (no. L821 ); between Rosario and Concepci6n, July 27 (3259a 

 and 3259e) and July 28 (3259b). All collected iii L897. 



A very common tree in the low country of Tepic and Binaloa. 



Terebinthus arida Rose, Bp. nov. Plate XXXVI. 



A low shrul>: branches dark gray, those of the final year densely pubescent, the 

 older ones glabrous; leaves clustered near the ends of short spurs or scattered along 

 the new branches; leaflets mostly 2 to 4 pairs, rarely reduced to ."> or sometimes even 

 to one, oblong t<> spatulate, 4 to <> cm. long, obtuse, glabrous on both Bides; petiole 

 and the narrowly winged rachis Blightly hairy; (lowers suhscssile: calyx halt as long 

 as petal-, both hairy: fruit Bubsessile, glabrous. 



TypeU. s. National Herbarium no. 453480, collected by J. N. Rose and Jos. II. 

 Painter near Tehuacan, Puebla, 1905 (no. 9985), August l and 2, 1901 (no. 5864 . 

 and by J. N. Etose, same locality, 



This species must be near B. galeotti, but it has fewer and differently shaped 

 leaflets, etc. 



Explanation of im.ati. XXXVI. — Fig. a, plant; b, fruit. Pig. a, natural sire; b, enlarged. 



Terebinthus bicolor (Schlecht. | R 



Elaphrium bicolor Schlecht. Linnaea 17: 625. 1848. 



"Kniun. PI. (aril.. :;. L8 i*Loefling, Her. 194. L758. 



&8p. PL ed. 2. 1: 171. ' Enum. PI. Oarib. 3, 19. 



Stirp. Am. Hi-t. 94. pi. 65. 



