190 Proceedings of the Biological Society of Washington. 



Most closely related to P. asperuloides H. B. K., of Guatemala and Brit- 

 ish Honduras, from which it differs in its larger magenta-pink flowers and 

 longer pedicels. 



Parsonsia blepharophylla, sp. nov. 



Herbaceous, 3.5 dm. high or more; stem slender, terete, grayish, densely 

 hispidulous with slightly retrorse hairs, the divergent branches also sparsely 

 hispid with ascending brownish hairs; leaves opposite, the blades 2.2 to 4.5 

 cm. long, 1 to 1.3 cm. wide, lanceolate to lance-ovate, acuminate, rounded 

 or subcordate and usually unequal at base, firm, entire, feather-veined with 

 6 to 8 pairs of prominulous lateral veins, above pale green, tuberculate- 

 hispidulous with spreading hairs and sparsely hispid with incurved tuber- 

 culate-based hairs, toward margin hispid-ciliate, beneath scarcely paler 

 green, tuberculate-hispidulous and along nerves hispid; petioles 1 to 2 mm. 

 long, hispidulous and sparsely hispid; branch leaves smaller; flowers in 

 racemes of 10 to 12 toward ends of branches and stem; bracts ovate, rather 

 crowded, 6 to 13 mm. long; pedicels densely hispidulous, 1 to 2 mm. long; 

 calyx 25 to 28 mm. long, nearly tubular, short-calcarate (spur 1 mm. long), 

 slightly swollen above, 12-nerved, purplish-tinged, rather densely hispid 

 with purplish hairs and hispidulous with short white spreading hairs, gla- 

 brous within below the stamens; petals 6, deep red with purplish-black 

 basal spot, the 2 upper oval, 11 mm. long, 8 mm. wide, the 4 lower 3 to 6 

 mm. long; stamens 11, inserted about % the length of the calyx above the 

 base (the 2 dorsal epipetalous slightly lower down), the episepalous ones 

 exserted, the 2 dorsal episepalous shorter and purplish-bearded especially 

 at apex; ovary glabrous, 16-ovulate; style glabrous, exserted; disk short, 

 thick, bisulcate, revolute. 



Type in the U. S. National Herbarium, no. 1,011,732, collected on road 

 from Ixtagua to Agua Fria, San Ignacio, Sinaloa, Mexico, altitude 340 

 meters, January 20, 1919, by A. E. Salazar (no. 698). 



This species belongs to series 3 of the subsection Lophostomum of 

 Koehne's monograph, and is distinguished from Cuphea bilimekii Koehne, 

 its nearest relative, by its densely hispidulous stem and pedicels, longer 

 calyx, and larger petals. 



Piptothrix sinaloae, sp. nov. 



Shrub, 0.5 to 0.8 m. high; branchlet slender, terete, fuscous-brown, rather 

 densely incurved-pubescent with several-celled hairs; leaves opposite, the 

 blades 5 to 5.5 cm. long, 2 to 3.2 cm. wide, ovate, acuminate, and somewhat 

 falcate, rounded to cuneate-rounded at base, broadest in the lower third, 

 serrate with about 11 pairs of mucronulate teeth between the entire base 

 and apex, papyraceous, 3-nerved, prominulous-reticulate beneath, above 

 dull green, evenly but not densely short-pubescent with spreading several- 

 celled glandular-tuberculate-based hairs, beneath paler green, similarly 

 short-pubescent chiefly along the veins and veinlets, densely gland-dotted ; 

 petioles 2 to 3 mm. long, similarly pubescent; panicle terminal, rounded, 4 

 cm. long, 5 cm. wide, densely short-pubescent with more or less spreading 



