ROBINSON: CONTRIBUTIONS FROM GRAY HERBARIUM. 267 
7-nervatis margine in parte media conspicue fimbriato-ciliatis sed 
basi late cuneato unguiformi et apice obtuso integerrimis; stamin- 
odiis in partes circa 6 filiformes apice capitato-glandulosas profundi- 
ter divisis; filamentis glabris 7 mm. longis, antheris 3 mm. longis 
mucronatis; fructu ignoto.— Mexico: in the Sierra Madres near 
Chuichupa, alt. 2600 m., 16 September, 1899, C. ZZ. 7. Townsend 
and C. M. Barber, no. 431 (type in hb. Gr.). 
This species is readily distinguished from any other by the oblong- 
oblanceolate leaves which are cuneate at the 
Hyptis SEEMANNI, Gray, var. stenophylia, var. nov. Magis 
puberula quam molliter pubescens; foliis angustis 8-14 mm, latis 
basi cuneatis utrinque viridibus.— Mexico: at Badehuache, Sonora, 
2 December, 1890, #. G. Lloyd, no. 450 (type in hb. Gr.); also not 
far from Seven Star mine, Rio de Aros in the Sierras of Chihuahua, 
3 September, 1899, C. H. 7. Townsend and C. M. Barber, no. 400. 
In the typical form of this species the stem and branches of the 
inflorescence are covered with a soft spreading tomentum, the leaves 
(at the base of the inflorescence) are 2 cm. broad, obtuse at the base 
and canescent-tomentose beneath. No floral differences have been 
detected. 
Pentstemon isophyllus, spec. nov. A basi subdecumbente 
erectus 7 dm. altus, caulibus simplicibus robustis teretibus purpureis 
pulverulentis foliosissimis ; foliis lanceolatis crassiusculis integerrimis 
glabris sessilibus acutis saepissime conduplicatis, primariis circa 25- 
jugis subaequalibus (infimis brevioribus exceptis) 3-4 cm. longis 
1 cm. latis, margine revoluto; panicula secunda 3 dm. longa, 
bracteis sessilibus ovatis acuminatis, cymis oppositis pedunculatis 
3-floris, bracteolis ovatis acutis, pedicellis 1.4 cm. longis; floribus 
nutantibus; calyce fere ad basim in segmenta 5 late ovata erosa 
brevissime acuminata 8 mm, longa enervosa atropurpurea diviso ; 
corolla coccinea 4 cm. longa in faucibus leviter ampliata plus 
minusve albo-puberula, limbo 5-lobato eroso-crenulato; filamentis 
staminum duorum inferiorum filiformibus 1 cm. supra basim affixis, 
parte libera 2.8 cm. longa, filamentis staminum duorum superiorum 
basi valde incrassatis in fundo infimo corollae aftixis, antherae loculis 
divergentibus plumbeis, rudimento 2.4 em. longo filiforme glabro 
apice leviter incrassato.— Mexico: on hills above Chalchicomula, 
Puebla, alt. 2750 m., 13 August, 1901, C. G. Pringle, no. 8568 
(type in hb. Gr.). 
