MULFORD EXPLORATION OF THK AMAZON VALLKV 



327 



and ol)tiis(' and slif;litly incurved IoIk'S. Summit long- and finely 

 acuminate and acute. Midrib rather stout, prominent on both 

 sides, the secondaries slender, about 15 on each side, widely 

 spreading?, connected at some distance from the marg-in, the 

 remainini;' venation loosely anastomosing. I'eduneles axillary, 

 mostly ai)ont half as long as their leaves, mostly one- or two- 

 flowered. Sepals nearly distinct, erect, 8 or 9 mm. long, 1 to 

 1.5 mm. wide, lanceolate, attenuate, the midrib rather stout. 

 Corolla rose-i)urple, 6 to 7 cm. long, the tulie a little longer than 

 the calyx and 1 to 1.5 mm. wide, abruptly dilated into the throat, 

 which is 1 cm. broad and gradually expands into the limb, which 

 is campanulate and 3 or 4 cm. broad at the mouth. Anthers 

 sessile, attaclied at the summit of the tube, 4 mm. long, whitish, 

 lanceolate, acute. Style filiform. Stigma very small. 



Trinidad, 800 feet, M. Cardenas, March 4, 1922 {no. 24, 

 special). A specimen collected near Reyes, 1,000 feet, 0. E. 

 White, October 27, 1921 {no. 1522) exhibits slight differences in 

 calyx, etc., but j^robably pertains to this species. 



MACROPHARYNX gen. nov. 



Calyx deeply 5-parted, the lobes narrow, attenuate, the l)ase 

 within indefinitely glandular. Corolla salver-form, the tube 

 short, cylindraceous, thickened, contracted above, the throat 

 elongated, infundibular, without scales or annulus, the lobes 

 ample, dextrorsely obtegent, not contorted. Anthers sessile, at- 

 tached at the summit of the tube, projecting into the throat, and 

 forming a cone about the stigma, the adnate filament bearing a 

 gland-like enlargement on the inner surface. Anther terminat- 

 ing in a long, acuminate, rigid appendage, the base sagittate and 

 bearing inflexed, rigid, acute caudae. Disk annular, of 5 co- 

 herent lobes. Ovaries closely approximate but distinct. Stigma 

 bearing, just below the middle, a ring of 5 white or greenish dis- 

 tinct spreading appendages, and at the sunnnit several unequal 

 aristae. Fruit unknown. 



A stout, high-climlnng vine with hollow stems. Leaves oppo- 

 site, ample, the interpetiolar lines very stout. Racemes axillary, 

 simple, densely flowered, strongly nodose, clothed, like the pedi- 

 cels and base of calyx, with elongate narrow bracts, sometimes 

 simulating a double calyx. Flowers large, white, fragrant. 



Genus apparently allied to UrecJiites. 



