STANDLEY TREES AND SHRUBS OF MEXICO. 1307 



2. Galvezia glabrata T. S. Brandeg. Zoe 5: 167. 1903. 



Southern Baja California ; type from San Felipe. 



Plants suffrutescent, the branches sometimes scandent ; leaves often ternate, 

 petiolate, 1 to 3 cm. long, obtuse or acute, glabrous ; pedicels glabrous ; corolla 

 2 to 3 cm. long ; capsule often cernuous. 



Galvezia speciosa puhescens T. S. Brandeg.^ is a pubescent plant which is 

 probably a form of this species. 



4. PENTSTEMON Schmidel, Icon. PI. 2. 1762. 



Shrubs or more commonly herbs; leaves opposite, entire or dentate; flovpers 

 showy, the peduncles usually branched and arranged in terminal thrysiform 

 panicles ; calyx 5-parted ; corolla bilabiate, the upper lip bilobate, the lower 

 trifid ; perfect stamens 4. 



Numerous herbaceous species occur in Mexico. 



Leaves linear or nearly so. 



Corolla 3 cm. long, red 1. P. pinifolius. 



Corolla 1.5 cm. long, pink 2. P. linarioides. 



Leaves oblong to broadly ovate. 



Leaves cordate or subcordate at base 3. P. cordifolius. 



Leaves acute at base. 



Corolla tubular 4. P. baccharifolius. 



Corolla funnelform ^ 5. P. antirrhinoides. 



1. Pentstemon pinifolius Greene, Bot. Gaz. 6: 218. 1881. 



Northeastern Sonora. Southern Arizona and New Mexico ; type collected 

 near Clifton, Arizona. 



Plants woody below, about 30 cm. high ; leaves narrowly linear, 2.5 cm. long 

 or less, glabrous, very numerous and somewhat crowded, entire ; corolla tu- 

 bular, the lips short. 



2. Pentstemon linarioides A. Gray in Torr. U. S. & INIex. Bound. Bot. 112. 



1859. 



Northeastern Sonora and mountains of Baja California. Western Texas 

 to Arizona and Utah ; type from Organ Mountains, New Mexico. 



Plants often woody below. 30 cm. high or less ; leaves about 1 cm. long, 

 crowded, entire, minutely puberulent ; corolla funnelform. 



3. Pentstemon cordifolius Benth. Scroph. Ind. Introd. 7. 1835. 

 Northern Baja California. Southern California. 



Plants suffrutescent, the stems long and subscandent, finely puberulent ; 

 leaves sessile or short-petiolate, ovate or broadly ovate, 4 cm. long or less, 

 acute, serrate or denticulate, scabrous-puberulent ; corolla tubular, bright red, 

 0.5 to 4 cm. long. 



4. Pentstemon baccharifolius Hook, in Curtis's Bot. Mag. pi. Jf627. 1852. 

 Peiitstciuoii baccharifolius schaffneri Hemsl. Biol. Oentr. Amer. Bot. 2: 443. 



1882. 



San Luis Potosi. Western Texas. 



Plants suffrutescent, 60 cm. high or less, the branches glabrous or puberulent ; 

 leaves sessile or petiolate, oblong or elliptic-oblong, 5 cm. long or less, obtuse, 

 entire or serrate, usually glabrous; corolla deep red, 2.5 to 3 cm. long. 



"Zoe 5: 167. 1903. 



