A 
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PLANTS FROM NORTH DAKOTA 155 
Sepals entire, with long, glabrate tips, lanceolate, white-woolly 
within and on the margins, the back of the lower part strongly 
glandular-hispid with long, scantily scattered setae. Fruit 
globular or pear-shaped, glabrous, 1-1.5 cm. in diameter. 
This species inhabits the woodland of the Turtle Mountains 
and the thickly timbered banks of Souris River. The specimens 
selected as type were collected by the writer near St. John, 
Rolette County, on July 7, 1910, in flower, and on July 29, 1910, 
in fruit, both specimens from the same individual plant. 
Both of the species just described belong to the R. blanda 
group, but their highest developed leaves have g leaflets, while 
R. blanda has never more than 7, and the latter has naked and 
entire stipules and larger flowers (sometimes 7 cm. broad). R. 
subnuda is a smaller plant with shorter woody and herbaceous 
branches, with stipules entire and soft-pubescent beneath, with 
the leaves and leaflets smaller and much more crowded and the 
latter softly pubescent beneath, the flowers of a lighter pink, 
all corymbose, and the outer sepals lobed, while Rk. gratiosa is 
taller, with larger branches, the stipules serrulate at the apex, 
leaflets larger, glabrate beneath, flowers a deep pink, corymbose 
or solitary, and the outer sepals entire. In general appearance 
this species comes nearer to Rk. blanda than R. subnuda. 
Rosa terrens sp. nov. 
Usque altitudinem 15 dm. crescens, caudicibus et ramis 
splendide obscuro-fuscis, spinas plerumque rectas longitudinis 
inaequalis uberrime gerens, quae praecipue in ramis sterilibus 
amplissimae et aspectu formidolosae fiunt. Stipulae late et 
glanduloso-serrulate alatae, glabrae vel glabratae. Rachis folii 
tomentulosa, spinis forsam armata. Foliola saturate viridia, 
obovata vel ovalia, obtusa, basi cuneata, usque paulum infra 
medium serrata, 2-3 cm. longa, petiolulata, subtus molliter pubes- 
centia, superne glabrata, 7-11 (gemina infima minora, ubi margines 
superiores alarum stipulae rachi adiunguntur affixa, petiolulis 
eorum rachi parallele interdum currentibus; quorum foliolorum 
alterum saepe deest). Flores mihi ignoti, corymbosi. Sepala 
lanceolata, integra vel lobata, interne et marginaliter albido- 
lanata, tergo glanduloso-hispido. Fructus globularis, 1 cm. diametro. 
Growing to a height of 15 dm., with stems and branches of a 
brilliant dark mahogany color, copiously armed with mostly straight 
