1274 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Flowers in loose panicles. Corolla 2 cm. long or larger. 



Leaves clasping at base; calyx minutely glandular-puberulent-l. H. nelsonii. 



Leaves not clasping; calyx glandular-hispid 2. H. langlassei. 



Flowers in heads, umbels, or fascicles, these variously arranged. 

 Calyx lobes spreading in fruit. 

 Calyx lobes in fruit equaling or usually shorter than the tube. 



3. H. stellulata. 



Calyx lobes longer than the tube 4. H. mociniana. 



Calyx lobes erect in fruit. 

 Flowers sessile or nearly so. 



Calyx in fruit 8 to 10 mm. long 5. H. rhytidea. 



Calyx about 2 mm. long 6. H. seemanni. 



Flowers all or mostly slender-pedicellate. 

 Flowers clusters all sessile or nearly so. 

 Leaves with a very dense, minute, close tomentum on the upper sur- 

 face 7. H. tephrodes. 



Leaves with a coarse tomentum on the upper surface, or the tomentum 

 fine but sparse. 

 Leaves lance-oblong to oblong-ovate, usually acute or acuminate. 



8. H, albida. 



Leaves mostly rounded-ovate and very obtuse 12. H. emoryi. 



Flower clusters all or mostly pedunculate. 



Lobes of the calyx half as long as the tube or less — 9. H. tomentosa. 

 Lobes of the calyx more than half as long as the tube. 

 Leaves soon glabrate, green. 



Calyx lobes linear-subulate; leaves broadly ovate, usually acute. 



10. H. laniflora. 

 Calyx lobes lanceolate; leaves suborbicular, rounded at apex. 



11. H. insularis. 

 Leaves densely whitish-tomentose on one or both surfaces. 



12. H. emoryi. 



1. Hyptis nelsonii Fernald, Proc. Amer. Acad. 35: 366. 1900. 



Type collected between San Sebastian and summit of Monte Bufa de 

 Mascota, Jalisco, altitude 1,850 meters. 



Leaves linear-lanceolate, 15 to 20 cm. long, attenuate, serrulate or entire, 

 glabrous ; panicles 40 to 50 cm. long, lax ; calj'x in fruit 1 cm. long. 



2. Hyptis langlassei Fernald, Proc. Amer. Acad. 45: 422. 1910. 



Type from the Sierra Madre of MichoacS-n or Guerrero, altitude 1,800 

 meters. 



Shrub, 2 meters high; leaves lanceolate, 10 to 17 cm. long, acuminate, sub- 

 cuneate at base, acutely dentate, glabrous; calyx in fruit 8 to 9 mm. long; 

 corolla red. 



3. Hyptis stellulata Benth. Lab. Gen. & Sp. 129. 1834. 

 Hyptis pubescens Benth. Lab. Gen. & Sp. 129. 1834. 

 Hyptis spinulosa Benth. Lab. Gen. & Sp. 129. 1834. 



Hyptis punctata Mart. & Gal. Bull. Acad. Brux. 11^: 186. 1844. 



Sonora to Oaxaca and Morelos. 



Plants shrubby or suffrutescent, 1.5 to 3 meters high; leaves narrowly 

 lanceolate to broadly ovate or ovate-oval, 2 to 8 cm. long, obtuse to long- 

 attenuate, serrate, puberulent or tomentulose beneath ; flowers sessile or nearly 

 so in dense clusters, these spicate-paniculate ; corolla white. " Salvia cimar- 

 rona" (Sinaloa). 



