ROSE — MEXICAN AND CENTRAL AMERICAS PLANTS. 121 



once pinnate; leaflets l"> to 19, Linear-oblong, LO to L3 nun. Long, 2 to 3 nun. broad, 

 glabrous, entire, obtuse; fruil solitary on Bhori reflexed peduncles, orbicular, glab- 

 rous, 3 Lines l<>n-_r. 



Typo 0". s. National Herbarium no. 301368, collected by J. V Rose al San Juan 

 Capistrano, Zacatecas, Augusl 21, L897 ao. 2455 . 



This species is nearest T. mierophyUa L Graj Rose and 71 morelensis (Ran 

 Rose, from both of which it differs in it- more distinct Leaflets, Bhorter peduncle - 



Terebinthus multijug-a I Engler Rose. 



Bursera midtijuga Engler in DC. Monog. Phan. 4: 12. L8£ 



Terebinthus odorata i Brandegee Rose. 



Bursera odorata Brandegee, Proc. Cal. Acad. II. 2: L38. 1889. 



Mr-. Brandegee reduced this species to B. fagaroides, but a study of good material 

 recently collected by Nelson and Goldman convinces me that while its relationship 

 is evidently here it is clearly distinct. 



Terebinthus ovalifolia (Schlecht. Rose. 



ElaphriumovaLifolium Schlecht. Linnaea 17:248. L843. 



Terebinthus palmeri (S. Wats. Rose. 



Bunera palmeri S. Wats. Proc. Am. Acad. 22:402. 



Terebinthus pannosa Engler) Rose. 



Bursera pannosa Engler in DC. Monog. Phan. 4: 54. 1883. 



Terebinthus penicillata (DC. Rose. 



Ektphrium peniciUatum DC. Prod. 1: 724. L824. 



Terebinthus pringlei S. Wats. Hose. 



Bursera pringlei S. Wats. Proc. Am. Acad. 25: 14-"). 1890. 



Terebinthus rhoifolia (Benth.) Rose. 



Elaphrium rhoifolium Benth. But. Sulph. 11. pi. 7. 1844. 



Bursera hindseana rhoifolia Engler in DC. Monog. Phan. 4: 59. 1883. 



Elaphrium hindseanum Benth. op. cit. pi. 8. 



In 1844 Bentham described from the Bay of Magdalena two species of Bursera 

 under the names Elaphrium rhoifolium and E. hindseanum differing, as In- state-, only 

 in the number of leaflets, the former having 3 and the latter only 1. Dr. Engler in 

 his Monograph of the Burseraceae has reduced rhoifolia to a variety of hindseana 

 although the name rhoifolia has precedence by position. There appears to be no 

 ground for maintaining both species and very little to support a subspecies. Rhoifolia 

 should therefore he the name of the species and hindseana should either be consigned 

 to synonomy or taken up for a subspecies if there proves to be one. Mr. Brandegee, 

 who has visited the type locality, states that the number of Leaflets varies from l to 9 

 and he is therefore of the opinion that do variety should be retained, with which 

 opinion 1 am in accord. 



Terebinthus rubra Rose, -p. nov. 



Small trees or shruhs with smooth red trunks, the hark peeling off in broad Bheets; 

 young branches and leaves glabrous; Leaflets 5 to 7 pairs, lanceolate, roundel at base, 

 acuminate, serrate below, entire above, paler beneath, 4 cm. Long or less; flowers 

 nol seen, hut inflorescence apparently open; bruiting peduncle 1 to 2 cm. long, bear- 

 ing two to four fruits; fruit obovate, Bomewhat 3-angled. 



<)nly seen in southeastern Sinaloa in the foothills, where it Beemsto be common 

 growing with ']'. tenuifolia. 



Type r. B. National Herbarium 300526, collected by J. NT. B ae near Colomas, 

 Sinaloa, July 14, 1897 (no. 1670 



This 3 ems nearest T. pringlei but has shorter petioles and peduncle and 



much broader leaflets, etc. 



