256 NORTH AMERICAN FLORA [Volume 25 



71. Elaphrium Goldmani Rose, sp. nov. 

 A small tree ; bark of first-year branches brownish, pubescent, of older branches 

 grayish, glabrate ; rachis of leaves winged; leaflets 5-7; blades ovate to oblong, the lateral 

 ones rounded at base, the terminal cuneate at base, all rounded at apex, 3 cm. long or less, 

 crenate, pubescent on both surfaces; inflorescence shorter than the leaves, few-flowered; 

 fruiting pedicels 6-7 mm. long ; drupes smooth, 7-8 mm. long. 



Type collected between Malanata and I Y a Cruz, Lower California, December 9, 1905, E. W. 

 Nelson & E. A. Goldman 7303 (U. S. Nat. Herb. no. S65S7.S). 



72. Elaphrium Schiedeanum (Engler) Rose. 



Bursera Schiedeana Engler, in DC. Monog. Phan. 4 : 57. 1883. 

 Terebinthus Schiedeana Rose, Contr. U. S. Nat. Herb. 10 : 122. 1906. 



Probably a tree ; branches short and thick ; leaves clustered at the ends of branches, 

 pinnate ; rachis winged ; leaflets 7-9, coriaceous, strongly reticulate beneath, sessile, 

 ovate, obtuse, 1-1.5 cm. long, 6-8 mm. broad, more or less pubescent on both surfaces, 

 crenate ; flowering branches shorter than the leaves, 2 cm. long ; flowers and fruit 

 unknown. 



Type locality: Near Huautla [Cuautla], Morelos. 

 Distribution : Known only from the type locality. 



73. Elaphrium glabrescens (S. Wats.) Rose. 



Bursera Palmeri glabrescens S. Wats. Proc. Am. Acad. 25: 145. 1890. 

 Bursera glabrescens Rose, Contr. U. S. Nat. Herb. 3 : 313. 1895. 

 Terebinthus glabrescens Rose, Contr. U. S. Nat. Herb. 10: 119. 1906. 



A shrub or small tree, 3.6-7.5 meters high, with dark-brown or blackish bark; leaflets 

 5-10 pairs, small, 4 cm. long or less, rarely 12 mm. wide, oblong, very rugose and becom- 

 ing nearly glabrous above, strongly reticulate and pubescent beneath ; rachis with narrow 

 wings; racemes very much contracted, but, including the peduncle, often 25-38 mm. long; 

 drupes 6 mm. in diameter ; stone orange, spheric. 



Type locality : Bluff of the Rio Grande de Santiago near Guadalajara, Jalisco. 

 Distribution : Durango to Jalisco. 



74. Elaphrium jorullense H.B.K. Nov. Gen. & Sp. 7 : 28. 1824. 



Amyris jorullensis Spreng. Syst. 4: Cur. Post. 148. 1827. 



Bursera jorullensis Engler, in DC. Monog. Phan. 4: 57. 1883. 



Terebinthus jorullensis W. F. Wight ; Rose, Contr. U. S. Nat. Herb. 10 : 119. 1906. 



A small tree; branches purplish, smooth, glabrous; leaflets oblong, obtuse, crenate, 



softly tomentose on both sides, strongly rugose beneath, 20-25 mm. long; inflorescence 



compact, 8 cm. long; drupes globose. 



Type locality: Near Jorullo, Michoacau. 



Distribution : Central Mexico. 



Illustration : H.B.K. Nov. Gen. & Sp. pi. 612. 



75. Elaphrium lanuginosum H.B.K. Nov. Gen. & 



Sp. 7: 31. 1824. 



Amyris lanuginosa Spreng. Syst. 4 : Cur. Post. 149. 1827. 

 Bursera lanuginosa Engler, in DC. Monog. Phan. 4 : 58. 1883. 

 Terebinthus lanuginosa Rose, Contr. U. S. Nat. Herb. 10 : 120. 1906. 



A small tree, the young branches very pubescent, the old branches glabrate, with smooth 

 brown bark ; leaves clustered at the ends of short branches, once-pinnate ; rachis winged, 

 entire (sometimes toothed?); leaflets 9-19, oblong, acute, crenate, densely pubescent on both 

 surfaces, 1.5-2.5 cm. long, sometimes reticulate beneath; inflorescence compact, 1-3 cm. 

 long; calyx-lobes very hairy without ; drupes subsessile, glabrous, globose, 5-6 mm. in 

 diameter. 



Type locality : Near Cuernavaca, Morelos. 



Distribution : Hot and dry valleys of central Mexico, especially in the State of Morelos. 



