Tan, 6738. 
PENSTEMON tasposvs. 
Native of California. 
Nat. Ord. ScropHuLARIACEE.—Tribe CHELONER. 
Genus Penstemon, Mitch. ; (Benth. et Hook. f. Gen. Pl. vol. ii. p. 940.) 
Penstemon (Eupenstemon) Jabrosus; elatus, glaberrimus, gracilis, foliis inferi- 
oribus anguste oblanceolatis obtusis v, subacutis, supremis anguste linearibus, 
panicule racemis elongatis laxifloris erectis, floribus horizontalibus gracile 
pedicellatis, sepalis parvis ovatis acutis, corolla sesquipollicari coccinea, lobis 
inferioribus linearibus subacutis patentibus (non deflexis) supremo ceteris 
non longiore oblongo apice 2-fido, fauce glaberrima, filamentis glaberrimis, 
antherarum loculis divaricatis, ovario glaberrimo. 
P. barbatus, Nutt. var. labrosa, Gray in Bot, Californ. vol. i. p. 622. 
P. labrosus, Gard. Chron. 1883, vol. ii. p. 536, fig. 91. 
A very distinct species of Penstemon, described by Gray as | 
-aremarkable form of the Mexican P. barbatus, agreeing with 
the var. Torreyi of Colorado in the want of beard, but 
differing in the long narrow lobes of the lower lip. An 
examination of a large suite of specimens of P. barbatus 
and its varieties, proves that P. labrosus is quite a different 
‘species from that, having a much more slender and scarlet 
corolla, with the three lower lobes quite as long as the 
upper. The calyx is also smaller, the flowers are more 
horizontal, and the lower corolla lobes are not sharply 
reflexed as in P. barbatus, but spread. 
P. labrosus was discovered by Dr. Rothrock in Southern 
: California, during Wheeler’s expedition in 1875, in Mount 
Pinos, south of Tejon, at an elevation of 7000 feet. For 
_ the specimen here figured I am indebted to Mr. Thompson 
_ of Ipswich, the introducer of so many new and rare 
American plants, with whom it flowered in August of 
last year. 
_ Descr. Quite glabrous. Stem three to four feet high, 
_ slender, erect, twiggy, terete, red-purple below. Leaves, 
lower four to five inches long by a quarter to half an 
? 
- FEBRUARY Ist, 1884. 
