MULFORD EXPLORATION OF THE AMAZON VALLEY 



343 



or 6 iiim. l()n<j:, 2 mm. broad, slifi,-litly narrowed upward, li<;-htly 

 curved and slightly ventricose, the teeth erect, green, subulate, 

 acute, about 1 mm. long-. Corolla somewhat exserted, the tube 

 white, much enlarged at the base, four lobes subequal, oval, ob- 

 tuse, ciliate, the anterior about as long and somewhat narrower, 

 somewhat narrowed toward the base. Mature nutlets not seen. 



Canamina, 4,000 feet, July 15, 1921, {no. 61 and 62). "A 

 weed about 3 or 4 feet high, in cultivated ground." Species very 

 near 11. yungasensis Britton. 



Hyptis compacta 



Upper leaf-surfaces densely and finely sliort-strigose, the 

 lower surfaces tomentose and strongly ferruginous. Stems and 

 numerous short branches stout, oliscurely angled, deep-purple, 

 coarsely short-pilose, leafy. Petioles to 1 cm. long, stout, broad, 

 dilated at the base. Blades to 6 cm. long and 4 cm. broad, oval, 

 with the base aliruptly contracted into the petiole and with ob- 

 tuse or rounded sununit, finely crenate-dentate, very thick, the 

 venation impressed above, the strongly ascending and falcate 

 secondaries 8 or 10 on each side, connected by numerous terti- 

 aries. Heads sessile, crowded at the ends of the branchlets, to 

 1.5 cm. broad, densely very many-flowered, dark-brown, all in 

 the mature fruiting stage in my specimens, subtended by broadly 

 ovate acute brown bracts which equal or slightly exceed the 

 flowers. Calyx 5 mm. long, 3 nun. broad, the tube campanulate, 

 10-nerved, the teeth 2 mm. long, triangular-sul)ulate, acute, 

 straight and erect. Nutlets small, ovoid, granular. 



On the pampas about Lake Rogagua, 1,000 feet, H. 11. Rushy, 

 November 4, 1921 {no.l630). The same also collected by Stein- 

 bach in the upper valley of the Mamore. 



SOLANACEAE 



Bassovia minutiflora 



Glabrous. Stems apparently herbaceous, terete, flexuous, 

 much branched, the branchlets divaricate or Avidely spreading, 

 very slender. Petioles to 5 mm. long, slender, continuous with 

 the base. Blades very unequal, from 2 to 8 or more cm. long 

 and 1 to 3 cm. broad, lanceolate, with cuneate base passing grad- 

 ually into the petiole, obscurely sinuate, very thin, bright-green, 

 the venation very slender, not prominent, the secondaries about 

 6 or 7 on each side, strongly ascending, lightly curved, the finer 



