MULFOKD EXPLORATION OF THE AMAZON VALLEY 



337 



Jacquemontia agricola 



Dciisoly ]inl)('scent with sliort, coarse, divaricate hairs and 

 apparently ch^niiny. Stems eh:»n<;ate, slender twining;-. Petioles 

 to 1 cm. long-, slender. Blades to 3 cm. long and half as wide, 

 ovate, with ronnded or subcordate base and acuminate and acute 

 sunnnit, thickish, pubescent, especially beneath, the secondaries, 

 about () on each side, im]n'essed above, thick and prominent be- 

 neath. Peduncles elongate, rigid, the numerous flowers crowded 

 at the summit and linear-bracted. Sepals 6 to 8 mm. long, the 

 three outer much larger, lanceolate and long-attenuate. Corolla 

 lilac, campanulate, about 1 cm. long, shortly o-lobed, the lobes 

 mucronate. Stamens about halt* the length of the corolla, in- 

 serted at its base, the filaments filiform, the anthers oval, obtuse. 

 Style exceeding the stamens, the stigmas two, liroadly ovate, 

 com])ressed. Mature capsule shorter than the se])als. 



A weed in cultivated ground, at Canamina, 4,000 feet, H. H. 

 Rush 11, July 15, 1921 {no. 80). 



Hydrophyllaceae 

 Nama longifolia 



Calyx sparsely white-pilose, the younger stems and upper 

 surface of the young leaves very minutely scabrate. Stems a 

 meter or more high, erect, branched above, pale-green, nearly 

 glabrous, the branches mostly short, ascending. Leaves sessile, 

 to 1 dm. long and 1.5 cm. wide, oblanceolate, with long-acumi- 

 nate base and acute or obtusish summit, entire, thin, pale-green, 

 the midril) prominent on both sides, more so beneath, the remain- 

 ing venation very slender, the secondaries strongly ascending. 

 Flowers densely racemose at the ends of the branches. Pedicels 

 slender, shorter than the flowers. Bracts lanceolate, acuminate, 

 unequal, some longer than the calyx. Sepals 4 mm. long, 1.5 or 

 2 nnn. wide, ovate, acute, with a strong midrib, sparsely clothed 

 with long- bristly hairs, slightly united at the base. Corolla 

 longer than the sepals, parted almost to the base. Stamens at- 

 tached to the base of the corolla and about equaling the corolla, 

 the lower half of the filaments abruptly and broadly dilated. 

 Ovary subglobose, 1 mm. broad, glabrous, bearing a small black- 

 ish tubercle from which the styles arise. Styles curved, flattened, 

 broader above, the stigma blackish. Capsule globose, 5 mm. 

 broad, light-brown, shining, bearing the persistent styles. 



Ixiamas, 800 feet, 0. E. White, December 16, 1921, {no. 1146). 

 "Growing in the edges of ponds, in sunshine, the floAvers light- 

 blue. Very rare." The species is related to caroUniana. 



