E. 
1121 
PENTSTEMON Richardsonii. 
Dr. Richardson’s Pentstemon. 
PRE “CL M 
DIDYNAMIA ANGIOSPERMIA. 
Nat. ord. SCROPHULARINEA. j 
PENTSTEMON Mitch. Calyx pentophyiius, aut quinquepartitus, 
bracteá solitarià distante. Corolla ventricosa bilabiata. . Stamina didynama 
rudimento quinti filiformi sæpiùs barbato. Anthere sejunctee sæpids glabro. 
Capsula ovata bilocularis, bivalvis, polysperma. Semina ángulata. Herbe v. 
suffrutices, Americane et Orientali- Asiatica... Folia levia acuminata sepiüs 
serrata. Flores paniculato-racemosi purpurei rosei albidive. jd 
P. Richardsónti ; caule herbaceo, foliis sessilibus pinnátifidis, calycibus 
glatiduloso-pubescentibus : laciniis ovatis acutis, corolle labio superiore 
bilobo, inferiore trilobo transverso, pedunculis racemosis 2-3 floris. . 
P. Richardsonii. Douglas Journal, &c. ined. 
Caulis erectus, sesquipedalis, parüm ramosus, teres, minutissime pu- 
bescens. Folia ovata, acuminata, pinnatifida; 2} uncias. longa, laciniis 
incisis, supra sub lente minutissimè pubescentia, subtús pallidiora, omnino 
glabra. Flores azillares, paniculati, paniculis strictis, paucifloris. Pedicelli 
glandulosi. Calyx pentaphyllus, foliolis oblongo-lanceolátis, subpubescentibus; 
Corolla purpurea, ventricosa; extús feró omnin glabra, bilabiata, labio supe- 
riore erecto, bilobo, inferiore trilobo, levissime piloso: Filamenta superiora basi 
incrassata, Anthere glabre, hippocrepice, resupinate, valvis versus apicem 
no Rudimentum filiforme, staminibus longior, apice pilis paucissimis 
rbatum. j A å 
One of several new species found by Mr. Douglas in 
the north-western territories of North America, growing 
on bare dry rocks, in the vicinity of the Columbia and its 
branches, == ER 
Mr. Douglas has named it in compliment to Dr. 
Richardson, the celebrated companion of Captain Franklin 
in the late overland expeditions to the shores of the Polar 
Sea, undertaken by order of the British Government. 
This is a handsome hardy perennial, growing freely in 
peat among American plants, and flowering towards the 
