526 PROCEEDINGS OF THE AMERICAN ACADEMY. 



4 mm. long, spreading : calyx tubular, in antbesis 3.5 to 4 mm. long, 

 appressed-i)ilose ; the tube 3 or 4 times as long as the short blunt lobes : 

 corolla blue, 1 to 1.2 cm. long; the glabrous tube one half longer than 

 the calyx ; the pilose galea twice exceeded by the exteriorly j^ilose lip : 

 style bearded. — Southern Mexico. Oaxaca, near city of Oaxaca, alt. 

 2,300 to 2,920 m., Sept., 1894 {E. W. Nelson, no. 1448), alt. 1,850 m., 

 Oct. 25, 1894 (f, G. Pringle, no. 6013); near Reyes, alt. 1,700 to 

 2,060 m., Oct. 20, 1894 {E. W. Nelson, no. 1783) ; mountains of Jaya- 

 catlan, alt. 1,300 m., Nov. 4, 1894, alt. 2,000 m., Oct. 18, 1895 (Z. C. 

 Smith, nos. 272, 860) ; near Chilpanciugo, alt. 2,770 to 3,140 m., Dec. 

 24, 1894 {E. W. Nelson, no. 2235) ; Chiapas, without locality ( Ghies- 

 breght, no. 764). 



* * Leaves, at least when young, pale beneath with stellate hairs. 



1- Calyx densely invested with close stellate indumentum, not long woolly (ex- 

 cept at the base in no. 114). 



++ Leaves 1 to 1.5 cm. long. 



111. S. FRDTicuLOSA, Benth. Lab. 721, & in DC. I.e. 315; Hemsl. 



I.e. 556; Eriq. in Engl. & Prantl, I.e. — Oaxaca, near city of Oaxaca 



{Andricux, no. 151). 



++ -^ Leaves 2 to 6 cm. long. 



= Branchlets and nerves of young leaves with sulphur-yellow indumentum. 



112. S. Conzattii. Branching above, the younger parts densely 

 stellate-tomentulose : leaves ovate, 1.5 to 6 cm. long, 0.75 to 3.5 cm. 

 broad, rounded at tip, rounded-truncate or subcuneate at base, dark 

 green and very rugose above, pale and very strongly reticulate-rugose 

 beneath; margin finely crenulate ; petioles 1.5 cm. or less in length: ra- 

 cemes spiciform, 2 to 6 cm. long, at first dense, the 3-many-llowered 

 verticels later becoming a little remote, all the j^arts more or less red- 

 punctate: bracts ovate-acuminate, exceeding the calyx, white-tomentose 

 at base, yellowish at tip, soon deciduous : calyx ovate-campanulate, 

 densely tomentose with pale blue freely-branching hairs, with very short 

 blunt inconspicuous lobes: corolla 1.2 cm. long, blue, red-punctate and 

 whitened above with stellate tomentum ; tube somewhat exserted ; the 

 galea hardly equalling the lip: style bearded. — Oaxaca, El Parian- 

 Etla, alt. 370 m., Nov. 1898 ( V. Gonzalez & C.Gonzatti, no. 902). 



= = Branchlets and lower faces of leaves with white indumentum. 

 a. Leaves broad-ovate, sliarply crenate-dentate : calyx-lobes blunt. 



113. S. pruinosa. Rather stout shrub with pale brown bark, the 

 younger parts densely pruinose with stellate hairs : leaves 2.5 to 5 cm. 



