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120 CONTRIBUTIONS FROM TITE NATIONAL HERBARIUM. 



Terebintlius lancifolia (Scliloclit.) AV. F. Wight. 

 Ehiphilam lancifoHinn Schlerht. T.innaea 17: 247. 1843. 



Terebinthus lanuginosa (IT. B. K.) Tit)se. 



EJaphrinvi lanugmosvm II. R. K. Nov. Gen. & Sp. 7: 3L 1825. 



Terebintlius longipes Rose, ^\\ nov, 



A small tree 3 to 4 uietera lii^^h, with a smooth trunk and with a broad flat top, 

 glabnms throughout; leaves pinnate, 10 to 25 em. long; common ])otiole terete, not 

 at all winded between the leaflets; leaflets 3 to 6 pairs, on t^leuder petioUiIes (the 

 longer 10 mm. long) long-acuniinate, the terminal ones cuneate at base, the others 

 usually rounded, sometimes narrowed, ahvays more or less ol)li(]uc at base, green 

 above, paler and f^ORle^vhat reticnlated below, quite glabrous on both sides even 

 when quite young; inflorej^cenco paniculate, 10 cm. long; flowering pedicels 4 to 5 

 mm. h>ng, in fruiting 5 to 8 mm. long; sepals ovate, obtuse; petalt^ white, oblong, 3 

 mm. long; fruit oblong, 12 mm. long, borne in a dense cluster. 



Type U. S. National Herbarium no. 346674, collected b}- J. N. Rose and Walter 

 Ilon^'h on the drv hills above ^fatamoras, Tuebla, June 26, 1899 (no. 4691). Also 

 collected by C. G. Fringle near Jojnila, ^Nlorelos, 1901 (no. 8510). 



This species was nut common about Matamoras, but Avas found ^^cattered along the 

 brow of dry hills mingled with various species of Acacia, Mimosa, and ()])untia. 



The type (Rose's no. 4691) is a fruiting specimen. The flower characters are 

 drawn from Pringle's no. 8510, which apparently belongs here, although the leaves 

 are very immature. This species, while related to T. suiuwuLu, is very different in 

 its habit of growth, inflorescence, foliage, etc. 



m 



Terebintlius macdougali Rose, Torreya 6: 170. August, 1906, 



A small tree; bark of 1 and 2 year old branches reddish, smooth; leaves clustered 

 at the ends of short spurs, either simple or with 3 to 5 leaflets; rachis of compound 

 leaves winged; petioles short; blade oblong, obtuse, 1 to 1.5 cm. long, crenately 

 toothed, Avith a very short, dense pubescence on both t^urfaces; male floWers borne 

 in short racemes or panicles; sepals and petals densely pubescent; female flowers 

 sohtary; peduncles very short, 4 mm. long, glabrous, 



A species common on the hills near the head of the Gulf of Gahfornia, first 

 collected by Dr. E. I'ahner in 1870 and recently collected near the sanu^ region by 

 Dr. T). T. ilacDougah after whom I take great pleasure in naming it 



This has heretofore been confused with i>. lilndsianaol southern Lower CaUfornia, 

 frotn which, however, it seems quite distinct. Itdiffers in its more vigorous branches, 

 reddish instead of blackish bai-k on 1 and 2 year old shoots, somewhat thicker leaves 

 and leaflets, shorter and densi^r pubescence on leaves, more pubescent petals, etc. 



Type U. S. National Herbarium no. 15501, collected by Dr. E. Falmt^r. 



f^pech/icnfi examined: 



' Lower California: Exact locality not given but doubtless neaj- thr mouth of the 



Colorado River, Dr. F., Palmer; San Felipe Bay, D. T. Maid)ougal, February, 

 1904; Los Angeles Bay, Dr. K. Palmer, 1887 (no. 572), 

 Sonora: llills near the Gulf oi (Vdifoniia, C. G. Pringle, August 20, 1884. 



Terebinthus mexicana (Englcr) AV, F. Wight. 



Bursera mexicana Engler, DC. ]Monog. Phan. 4: 51. 1883, 



Terebinthus microphylla (A. Gray) Rose. 



Bursera mlcrophyUa A. Gray, Proc. Am. Acad, 5: 155. 1861. 



Terebinthus niorelensis (Ramirez) Rose. 



Bursera morelenm Ramin^z, AnaL Inst. Med. Nat. 2:17. 1896. 



Terebinthus multifolia Rose, sp. nov. 



Small shrub 2.4 meters high; branches dark, sometimes reddish, glabrous; very 

 young branches puberulent; leaves borne in clusters near the ends of short branches, _^ 



