342 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
13. Penstemon paysonii Pennell, sp. nov. 
Stems several, 8 to 16 cm. tall, from a short branched caudex, below cinereous-pu- 
berulent with reflexed hairs, above pubescent with gland-tipped hairs; leaves pale 
green above and beneath, cinereous-puberulent, those at the base of the stem with 
lanceolate acute blades 1.5 to 3 cm. long, these narrowed into margined petioles 
1.5 to 3.cm. long, the stem leaves sessile (opposite leaves meeting around stem), linear- 
lanceolate, obtusish to acute, the largest mostly 4 to 5 cm. long, 3 to 5 mm. wide; 
thyrsus narrow, over one-half the height of the plant, composed of 4 to 6 fascicles, 
each of these consisting of 2 axillary shortened branches, their pedicels shorter than 
the peduncle; sepals 8 to 9 mm. long, lanceolate, acuminate, obscurely or not ribbed, 
entire, slightly scarious-margined proximally, glandular-puberulent; corolla 18 to 22 
mm. long, the tube and throat 14 to 16 mm. long, the throat somewhat inflated and 
rounded ventrally, the 2 posterior lobes 4 to 5 mm, long, united and arched much 
Jess than one-half their length, the 3 anterior lobes 5 to 6 mm. long, united at base, all 
the free portions spreading, the corolla externally glandular-puberulent, within gla- 
prous, blue (not seen fresh); anther sacs widely divaricate, 0.9 mm. long, oblong- 
lanceolate, minutely puberulent, distinct, with medium line of contact, opening 
throughout, the suture slightly fimbriolate; sterile filament not exserted, flat, slightly 
enlarged distally, moderately strongly bearded distally with relatively (to P. erian- 
therus) short yellow hairs on the posterior face; capsule not seen. 
Type in the herbarium of the Missouri Botanical Garden, collected on rocky hill- 
sides at Naturita, Montrose County, Colorado, altitude 1,620 meters, in flower, 
April 27, 1914, by Edwin Payson (no. 257). Isotypes in herbarium of Field Museum 
of Natural History and Rocky Mountain Herbarium. 
Upper Sonoran Zone. Valley of Dolores River in southeastern Colorado. 
14. Penstemon moffatti Eastw. 
Penstemon moffatti Eastw. Zoe 4: 9. 1893. ‘‘It was collected at Grand Junction 
[Colorado] along the railroad to the coal beds.”? Specimen in herbarium of the New 
York Botanical Garden, collected at Grand Junction by Alice Eastwood, May, 1891, 
is doubtless an isotype. 
Penstemon pseudohumilis Jones, Contr. West. Bot. 12: 65. 1908. “This grows in 
clay soil at Price, Utah, [M. E. Jones] May 29, 1898 (type in Herb. Jones).”” Type 
not verified, but apparently of the species here considered. 
Arid sagebrush plains and slopes, at altitudes of 1,400 to 1,600 meters; Upper 
Sonoran Zone; flowering in May. In the Grand River drainage of western Colorado 
and eastern Utah. 
Cotorapo: Mesa: De Beque (Y); Grand Junction, Zastwood (M, U, Y), Pennell 6173 
(D, F, H, R, U, Y). 
Urau: Grand: Thompsons (‘‘Thompson’s Springs”), Jones (M, Y). 
15. Penstemon eriantherus Pursh. 
Penstemon eriantherus Pursh, Fl. Amer. Sept. 737. 1814, ‘In Upper Louisiana, 
Bradbury * * * v. 8. in Herb. Bradbury.’’ According to Bradbury (Travels 318. 
1817), ‘Common on bluffs from Big Bend to Aricara Village,”’ South Dakota. Type 
or isotype, labeled ‘‘Louisiana, Bradbury,’’ seen in herbarium of the Academy of 
Natural Sciences of Philadelphia. Not P. erianthera Nutt. in Fraser’s Cat. 1813, 
nomen nudum; later published by Nuttall in 1818, The latter is P. glaber Pursh, a 
species with hirsute anthers. Pursh, attempting to apply Nuttall’s catalogue name to 
the specimens brought back by Bradbury from the joint Missouri expedition of Brad- 
bury and Nuttall, applied erianthera to a species with glabrous anthers, misled evi- 
dently by the long beard of the sterile filament. To the writer it seems a violation of 
scientific accuracy to hold such a misnomer, but according to all present codes the 
