s 



134 safford: a remarkable eysenhardtia 



subopposite, stalked, oval or oblong-elliptical, finely granular-dotted, 

 retuse at apex, rounded at base, the largest (near the middle of the 

 rachis) 4 cm. long, 1.6 cm. broad, glabrous above, sparsely puberulent 

 beneath (as seen under the lens) ; petiolules about 4 mm. long, densely 

 glandular-tuberculate (in type specimen without stipels). Flower 

 small (about 8 mm. long), white, turning yellow in drying, crowded in 

 spicate racemes, these forming the ultimate divisions of a spreading 

 terminal compound panicle; branches of inflorescence finely cinereous- 

 tomentose and glandular-punctate; pedicels very short and slender (1 

 mm. long), subtended by a minute acute sessile lanceolate deciduous 

 bracteole. Calyx funnel-shaped, deeply divided into 5 nearly equal 

 linear-oblong lobes (rounded at the tips), clothed on the outside with 

 minute cinereous hairs and irregularly dotted with resinous globules. 

 Corolla subpapilionaceous, composed of 5 distinct unguiculate petals, 

 the standard (vexillum) twice as broad as the wings and keel petals, 

 emarginate or retuse at the apex, carinate; wings and keel petals nearly 

 similar, equalling the standard in length. Stamens 10, graduated in 

 length, united into a cleft tube, the upper (vexillar) the shortest, the 

 lower slightly exceeding the style; anthers similar, the pollen cells 

 united by a relatively broad connective. Ovary nearly sessile, 1-ovuled, 

 clothed with minute hairs; style terete, slender, not hooked at the tip, 

 but with a slightly broader terminal stigma. Legume not observed. 



Type in the United States National Herbarium, No. 385587, col- 

 lected at La Correa, State of Guerrero, Mexico, at an altitude of 150 

 meters, October 1, 1898, by E. Langlasse (No. 395). " Arbre 8-10 m., 

 bois pr£cieux noiratre; fleurs blanches. Nom indigene, Palo de arco 

 [bowwood]." 



This species is named in honor of the late Dr. Leonardo Oliva, Pro- 

 fessor of Pharmacology in the University of Guadalajara, who first 

 indicated the true botanical classification of the Mexican lignum 

 nephriticum and identified Eysenhardtia amorphoides H.B.K. with 

 Viborquia polystachya Ortega. 



The accompanying figure is from a drawing of the type by Mrs. R. 

 E. Gamble. 



Explanation of Fig. 1. 



Type specimen of Eysenhardtia Olivana Safford, showing the branching inflor- 

 escence, leaves, a flower, and the essential parts: a, flower with one petal 

 removed, to show the stamens and pistil; b, resinous globule, detached from the 

 calyx; c, cleft staminal tube with stamens, some of them deprived of their an- 

 thers; d, carpel, showing pilose ovary and style with terminal stigma; e, ver- 

 tical section of ovary, showing solitary ovule;/, vexillar petal (standard); g, a 

 wing petal; h, one of the keel petals. Leaves and inflorescence natural size; 

 a, c, d, f, g, h, scale 5; b, e, scale 6. 



