EASTWOOD. — MEXICAN SPECIES OF CASTILLEJA. 573 



bus purpureis sessilibus in spicis brevibus ; calyce 18 mm. longo, fisso 

 7 mm., laciniis obtuse lobatis vel profunde emarginatis binerviis arach- 

 noideo-pilosis et glandulosis ; corollae galea et labio inferiore calycem 

 superantibus, priori 8 mm. longa, basi 3-4 mm. lata, apice acuta, dorso 

 glandulari-puberulenti, antice purpurea membranacea ; labio inferiore 

 viridi protuberanti tridentato, dentibus obtusis incurvis infra tripli- 

 catis ; stigmate exserto bilobato, apice styli curvato ; capsula ovato- 

 acuminata 1 cm. longa. — Durango : near El Salto, altitude 2440- 

 2600 m., 12 July, 1898, E. W. Nelson, no. 4553 (type, in bb. U. S. 

 Nat. Mus., dupl. in bb. Gray). This is related to C. Schaffneri and 

 C. Pringlei, but differs from all of the same alliance in general habit of 

 growth, pubescence, and most especially in the lower lip of the corolla, 

 which has the divisions separated by a plicate sinus that is often toothed 

 at the top. 



14. C. Pringlei Fernald, caulibus plurimis decumbentibus 3-6 cm. 

 altis ; foliis imis confertis et bracteiformibus ovatis 3-4 mm. longis, 

 superioribus lanceolatis vel oblongo-lanceolatis simplicibus vel apice 

 trilobatis pilosis 1.5-2 cm. longis ; bracteis foliis similibus, laciniis 

 angustis coloratis ; calyce tubuloso 2.5-3.5 cm. longo, infra ochro- 

 leuco piloso, supra rubro puberulenti, segmentis 6-8 mm. longis obtuse 

 bilobatis ; corolla vix exserta, galea angusta pilosa, labio inferiore tri- 

 saccato, lobis 1 mm. longis. — Pro'c. Am. Acad. xl. 56 (1904). — Hidalgo: 

 Sierra de Pachuca, G. G. Pringle, nos. 9647, 8666 (type, in hb. Gray) ; 

 Rose & Hay, no. 5581. Morelos : Mount Popocatepetl, Rose & Hay, 

 no. 6022. Related to C. Schaffneri but with much larger flowers and 

 densely pilose calyx. 



15. C. Schaffneri Hemsl., hirsuta scabrida basi ramosa, ramis vel 

 caulibus erectis vel adscendentibus, 2.5-5 cm. altis densissime foliosis ; 

 foliis integris anguste lineari-lanceolatis subacutis ca. 2 cm. longis ; 

 bracteis trinerviis trifidis, lobis linearibus acutis, medio longiore ; calycis 

 lobis rotundatis vel obscure emarginatis ; corollae galea paulo exserta, 

 dorso hirsuta ; labio inferiore tridentato. — Hemsl. 1. c. 462, t. lxiii. B. f. 

 7-13 (1882). — State of Mexico : in the valley of Mexico, Schaffner, no. 

 373 (dupl. of type, in hb. Gray) ; Desierto Viejo, same region, Bourgeau, 

 no. 874; Flor de Maria, C. G. Pringle, no. 3193 ; Mount Ixtaccihuatl, 

 altitude 3355-3660 m., C. A. Purpus, no. 218. Morelos: meadows 

 about Tres Marias, altitude 2897 m., C. G. Pringle, no. 13,141. 



Var. cinerascens, n. var., nana pallida foliosa cinerascens ; cauli- 

 bus ramosis caespitosis 1 dm. altis retrorse pilosis; foliis linearibus 

 vel saepissime divaricate pinnatisectis, laciniis 3-5 attenuatis (media 

 elongata) nervatis scabrido-hispidis ; bracteis foliis superioribus simil- 

 ibus, apice ochroleucis puberulenti-glandulosis ; calyce 1.5 cm. longo 



