•98 CONTRIHIJTIONS FROM THE NATIONAL HERBARIUM. 



mucronate, slightly pubescent above, appressed-pubescent beneath; pcdaucles about 



as long as the leaves, 2 or 3-flo\vered; pods very short, 10 to 12 mm. long, mucronate. 



Typo tJ. S. National Herbarium no. 2801G7, collected by C. G. Pringlo near Carneros 



Pass, Coahuila, 1889 (no. 2783); also by Dr. E. Palmer in the Sierra :Madre south of 



Saltillo, 1880 (no. 281). 

 This species haa been confused with C. vogeUana, but it has the pods much shorter, 



the leaflets fewer, etc. 



I 



Cassia durangensis Rose, Rp. nov. 



Sk'ujs apparently single and erect, 20 to 40 cm liigfi, velvety pubescent; leaflets 1 

 pair, broadly oblonjr to nearly orbicular, 3 to 5 cm. long, with den^e soft pubescen<:e 

 on both sides of a decidedly yellowish cast, CHpecially when young; peduncles longer 

 than the leaves, usually 8 to Tj-flowered; pods strict, 3 to 3.5 cm. long; seeds glossy. 



Type IL 8. National Herbarium no. 304717, collected by Dr. E. Palmer near 

 Durango in 1896 (no, 271) ; also near the same place by K W. Nelson in 1898 (no. 



4595). 



Perhaps nearest a banlimmdcs Gray, but of simple and more erect habit with 



larger and much broader leaflets^ more upright pods, etc. * 



Cassia goldmani Eose, sp. nov. 



Shrub or tree 4 to 6 meters high; leaves clustered near the ends of stunted 

 branches or scattered along the vigorous branches; rachis slightly pubescent; leaflets 

 5 to 12 i^airs, rather thick, the venation somewhat indistinct, glabrous or nearly so, 

 the margins never ciliate, pale on both sides, perhaps glaucous, 12 to 16 mm. long, 

 broadest near the tip, oblique at base, rounded at apex, usually with a short mucro; 

 pods 8 to 10 cm. long, somewhat glaucous, 2 cm. or more broad, the margins winged. 



Type [T, S. National Herbarium no. 565:523, collected by Nelson and Goldman about 

 5 miles southwest of El Potrero, Lower California, October 31, 1905 (no. 7238). 



Pvcscmbling C. pohjantha of Central Mexico, but having somewhat different leaf- 

 lets, less pubescence on branches and leaflets, etc. 



HOFFMANSEGGIA: A NEW SPECIES AND A NEW NAME. 



Hoffmansegg-ia arida Rose, ep. nov. Plate XXIX, 



Stems low, diffuse, usually herbaceous but sometitnes woody at base, glabrous 

 except some stipitate ghuKls; stipules ovate, acute; petioles slender, bearing a few^ 

 stipitate glands; pinnae 3 to (J pairs; leaflets 4 to S pairs, oblong, 3 to 4 nun. long, 

 glabrous except a gland in the retuse apex; inflorescence an erect or ascending 

 raceme, 10 to 20 cm. long including tiie peduncle, at first very dense, bearing many 

 stipitate glands; hmc^s subtending the flowers ovate, acuminate, ciliate; calyx deeply 

 5-parted, tlie lobes somewhat unequal, ciliate; flow^ers yellow tinged with red; pods 

 narrowly oblong, 3 to 4 cm. long, acute, glabrous except for the junnerous stipitate 



glands. 



Common on the deserts of Qucrctaro. 



Type U. S. National PTerbarium no. 453109, collected by J. N. Rose and Jos. H. 

 Painter between San Juan del Rio and Cadereyta, August 19, 1905 (no. 9619); also 

 near Iliguerillas, August 23, 1903 (no. 9770). 



This species is near Jf, strida Benth., but the inflorescence and pods lark the soft 



pubescence on the racemes and pods. 



Explanation of Platk XXIX,— Fig. a, flower; b, iiitlurcsccin;^'; c, llower; d, (joroUa laid open; e, 

 calyx luid opoii; /, petal; (j. staniou; It, iniii ; i, seed. Figs, a, b, and h, iiatnral f^ize; r, d, ej, g, and t, 



scale 2. 



Hoffmansegg'ia watsoni (^Fisher) Rose. 



Jf. yracJlu S. Wats. Proc. Am. Acad. 17: 347. 1882, not Hook. & Arm 1833. 

 Caemlpinia watsoni Fisher, Bot. Gaz. 18: 122. 1893. 



