i-.- 



p 1 



r 



lis 



CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



alily ostablifsh the identity of Browne's species with Plstacia dmarula, 

 as the same references with no other description or citation, are given 

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

 Browne's work, Jacquin, 1760/' includes the same species as Terehmtlim 



hronmii. 



1762,^ chanjred the name to Bursera gummift 



ifi 



by Jacquin 17G3.^ But Bursera or Burseria, is invalid for this genus 

 not only because it is antedated by Terebinthus but because the name 

 was applied earlier'^ to a ditfercnt genus. Another name which has 

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

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



mum 



r 1 



appears. 



The following arc the known Mexican species: 



Terebinthus aloexyloix (Schiede) W. F. Wight, 

 lilaphriuni alocxyloa Schiede, Liiinaca 17: 252. 1843. 



Terebinthus aptera (Eaniirez) Rose, 



■ 



Bursera aptera Ramirez, Anal. Inst. Med, Nac. 2: 16. pL 1. 1896. 



Terebinthus arborea Rose, sp. nov. 



Tall trees; old trunks red and smooth; young branches pubescent; leaflets 2 to 4 

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

 less abruptly acuminate, the acuminum obtuse, somewhat pubescent on botli sides; 

 inflorescence paniculate; fruit glabrous; sepals ovate, acute, ciliate; fruit in very 



compact clusters. 



Type U. S. National Herbarium no, 302233 (Rose 3259e) , collected by J. N. Rose 

 between Acaponeta and Concepcion, Tepic, July 2 (no. 1505), July 4 (no. 1530); 

 nearRosario, July 22 (no. 1821); between Rosario and Concepcion, July 27 (3259a 

 and 3259e) and July 28 (3259b). All collected in 1897. 



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



Terebinthus arida Rose, sp. nov. 



Plate XXXVI. 



t- 



b. . 



A low shrub; branches dark gray, those of the first year <lensely pubescent, the 

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

 the new l)ranches; leaflets mostly 2 to 4 pairs, rarely red lu^ed to 3 or sometimes even 

 to one, oblong to spatulate, 4 to 6 cm. long, obtuse, glabrous on both sides; petiole 

 and the narrowly winged rachis slightly hairy; flowers subsessile; calyx half as long 

 as petals, both hairy; fruit subsessile, glabrous. 



Type U. S. National Herbarium no. 453480, collected by J. N. Rose and Jos. H. 

 Rainter near Tehuacan, Ruebla, 1905 (no. 9985), August 1 and 2, 1901 (no. 5864), 



and by J. N. Rose, same locality, ' 



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



leaflets, etc. 



Explanation of Pj.ate XXXVL— Fig. a, plant; h, fruit. Fig. a, natural size; h, enlarged. 



Terebinthus bicolor (Scblecht.) Rose. 



Elaphrium bicolor Schlecht. Linnaea 17: 625. 1843. 



«Enuin. PI. Carib. 3, 18. 

 6Sp. PI. ed. 2. 1: 471. 

 cStirp. Am. Hiat. 94. pi. 65. 



^Loefling, Iter. 194. 1758. 

 e Enum. PI. Carib. 3, 19. 



