374 NORTH AMERICAN FLORA [Volume 25 



ovate or lance-ovate, 1.5-4 mm. long; pedicels densely pilosulous, 4-6 mm. long; flowers wine- 

 red or rosy; sepals oval to suborbicular, ciliate and sparsely spreading-pilosulous, 2.5-4 mm. 

 long; wings suborbicular, emarginate, 8-1 1 mm. long, 6.8-S mm. wide, rounded or subcordate 

 above the glabrous claw, ciliate to middle or to apex, about 11-nerved; keel ciliate on saccate 

 portion, 8.5-10 mm. long; samara spreading-puberulous, 3.8-4.7 cm. long; fruiting cell 7-9 

 mm. long, reticulate, narrowly winged on upper side, the wing obliquely rounded, prolonged 

 for 3-7 mm. beyond the fruiting cell into a tooth, this connate at base with proper wing; 

 wing obovate, narrower to broader at base than the fruiting cell, 3-4 cm. long, 4-6 mm. wide 

 at base, 12-14 mm. wide near middle. 



Type locality: Jalapa, Veracruz. 

 Distribution: Veracruz and Tepic to Costa Rica. 



8. Elsota coriacea (Bonpl.) Blake. 



Securidaca coriacea Bonpl. Ges. Nat. Freunde Berlin Mag. 2: 47. 1808. 



Securidaca mollis H.B.K. Nov. Gen. & Sp. 5: 421. 1823. 



Securidaca pubescens Seem. Bot. Voy. Herald 80. 1852. Not 5. pubescens DC. 1824. 



Securidaca lomenlosa Hemsl. Biol. Centr. Am. Bot. 1:63. 1879. Not 5. lomentosa St.-Hil. 1829. 



Elsota mollis Kuntze, Rev. Gen. 46. 1891. 



Securidaca volubilis mollis Chod. Bot. Jahrb. 36: 380. 1905. 



Scandent shrub; branches and branchlets softly short-pilose with dull spreading hairs; 

 leaves oval, oblong-ovate, or ovate, 3.7-7.5 cm. long, 2.2-4 cm. wide, obtuse to rounded, some- 

 times emarginate, at base broadly rounded, chartaceous, above deep-green, somewhat lucid, 

 rather sparsely short-pilose with dull spreading hairs on surface, densely so on margin, reticu- 

 late with 8-10 pairs of veins, beneath dull- green but scarcely paler, softly and rather densely 

 spreading-pilose; petioles spreading-pilose, 2.5-4 mm. long; peduncles 3-8 mm. long; racemes 

 rather dense, the axis 2.2-4 cm. long; bracts lance-subulate, pilose, deciduous, 1.8 mm. long; 

 pedicels densely short-pilose, 5-8 mm. long; flowers pink; sepals oval or suborbicular, densely 

 sordid-pilose except near the ciliate margin, 2.5-3.5 mm. long; wings suborbicular, emarginate, 

 8-8.2 mm. long, 5.8-6 mm. wide, ciliate toward base of lamina, sparsely ciliolate above, pubes- 

 cent on claw and down midline; keel long-ciliate on saccate portion about to middle, with 

 small crest, 10.5 mm. long; samara greenish, densely short-pilose with dull spreading hairs, 

 5.2-7 cm. long; fruiting cell very plump, elevated-reticulate, 7.5-11 mm. long, very narrowly 

 margined on upper side, the margin obscurely decurrent into the proper wing; wing obovate, 

 at base slightly narrower than the fruiting cell, 3.7-6 cm. long, 5-5.5 mm. wide near base, 

 17-22 mm. wide near middle. 



Type locality: Forests along the Amazon River. 

 Distribution: Panama and Trinidad to South America. 



Excluded species 

 Specimens from Panama, recorded as Securidaca pubescens DC. by Seemann (Bot. 

 Voy. Herald 80), and as S. TOMENTOSA St.-Hil. by Hemsley (Biol. Centr. Am. Bot. 1: 63), 

 are undoubtedly to be referred to Elsota coriacea (Bonpl.) Blake. 



3. MONNINA R. & P. Syst. Fl. Peru. & Chil. 169. 1798. 



Hebeandra Bonpl. Ges. Nat. Freunde Berlin Mag. 2: 40. 1808. 



Herbs or shrubs, very rarely scandent. Leaves alternate, entire, estipulate or with stipular 

 glands. Flowers in terminal and axillary racemes, these sometimes panicled. Sepals 5, decidu- 

 ous, the three outer herbaceous, free or the two lower united, the two inner (wings) much 

 larger, petaloid. Petals 3, the lower (keel) boat-shaped, not clawed, unappendaged, essenti- 

 ally free; the two upper usually oblong or ligulate, united below to the staminal sheath. 

 Stamens 8 or 6, the filaments united nearly to apex into a sheath split on the upper side; 

 anthers confluently 1 -celled, opening by a large intorse-apieal pore. Ovary 1 -celled or rarely 

 (in extralimital species) 2-celled; style sickle-shaped; stigma-lobes 2, dissimilar; ovules soli- 

 tary, pendulous. Disk usually reduced to a gland at base of ovary. Fruit samaroid, narrowly 

 and nearly equally winged, or drupaceous, with thin fleshy coat, the surface rugose, marginate. 

 Seed glabrous, exarillate; testa thin; endospeim practically wanting; cotyledons thick, 

 conferruminate. 



Type species, Monnina polystachya R. & P. 



