246 BLAKE: REVISION OF ICHTHYOMETHIA 



1. mollis, have not yet been collected, but from the agreement in other 

 features it is probable that they will show the same peculiarities. The 

 fruit of both species is precisely that of the type species of Ichthyo- 

 methia, and the character of the stamens is known to Vary in the same 

 way in related genera of this group. 



2. Ichthyomethia mollis (Rose) Blake. 



Piscidia mollis Rose, Contr. U. S. Nat. Herb. 1: 98. 1891. 



Tree, 3 to 8 meters high; branches rather slender, softly cinereous- 

 tomentulose, in age glabrate; leaves 7 to 13-foliolate, 8 to 20 cm. long; 

 petiole, rachis, and petiolules densely cinereous-tomentulose ; leaflets 

 3 to 7.8 cm. long, 2 to 4 cm. wide, oval to ovate, acute to rounded, 

 at base rounded, whitish green on both sides, above densely pilosulous 

 with crisped hairs, beneath densely and softly short-pilose with as- 

 cending hairs, in age prominulous-reticulate ; fruit 2.5 to 5 cm. long, 

 3.5 to 4.5 cm. wide, i to 3-seeded, densely cinereous-puberulous, the 

 wings much wider than the body of the fruit, sometimes split in age. 

 Type Locality: Ridges about Alamos, vSonora. 

 Specimens Examined: 



Sonora: Alamos, 1890, Palmer 355 (type collection). Dry hills, 

 Alamos, 1910, Rose, Standley, & Russell 12906, 135 15. Near Torres, 

 1903, Coville 1659. 



This species is distinguished from /. grandifolia by having its leaflets 

 pilose rather than tomentose beneath. The flowers have not yet been 

 collected. The plant bears the vernacular name "palo bianco." One 

 of the specimens collected by Rose, Standley, and Russell, under their 

 number 12906, is remarkable in having dull green, rather sparsely 

 pilosulous leaves. It is doubtless a sucker growth or young shoot of 

 the plant, and is not properly to be taken as indicating variation in the 

 adult leaves, all those examined being very constant in both color and 

 pubescence. 



3. Ichthyomethia havanensis Britton & Wilson, Bull. Torrey Club 

 44: 34. 1917. 



Shrub, 2 meters high; branchlets sparsely puberulous, in age fuscous, 

 glabrate; leaves 9-foliolate, 10 cm. long; petiole and rachis rather 

 densely sordid-puberulous with spreading hairs; leaflets (immature) 

 3.5 cm. long, 1.5 cm. wide, elliptic to oblong-oval, obtuse to rounded, 

 mucronulate, at base cuneate-rounded, above dull green, spreading- 

 puberulous, glabrescent, beneath paler, prominulous-reticulate, densely 

 puberulous with ascending hairs somewhat more numerous along the 

 veins; calyx 5 mm. long, densely rufescent-strigillose, the teeth deltoid, 

 obtuse; fruit, 1.2 to 3.5 cm. long, 2 to 2.8 cm. wide, i to 3-seeded, ap- 

 pressed-puberulous, the wings much wider than the body, usually 

 undulate-divided. 



