ROSACEAE 623 
11. R. rhodophyllus Rydb. Stems decumbent, Fara pubescent or in age 
rouge the B diio flattened only at the base; Ls of the turions 
not s flowering brane 1 dm. long or less, villous: leaves 3-foliolate; 
leaflet. blades broadly cae or ovate finely and simply serrate with h broad 
boe ips teeth, elosely pee tag epee beneath, sparingly hairy or glabrate 
orymb ’ few -flow sepa vate, mucronate, villous or tomentose 
tomentulose within : Pa obovate, 10-12 mm. long.—Dry wo ods and 
folds een Plain, E Fla. to S Mis 
12. R. invisus pen, Britton. Stems decumbent or ascending, 1-2 m. long 
or less, glabrous, terete, the priekles weak and straight: leaves of the o 
pedately 5-foliolate; blades of b: leaflets ovate to orbieular-ovate, 4—10 
long, abruptly short- -acuminate, thin, glabrous or e ngly pubescent on both 
us eoarsely and rather evenly ae D nded o der ds at the base, or 
those of the narrower lateral leaflets acute at the bas : floral branehes 1. 5-2.5 
dm. Tor ng; leaves 3-foliolate or individua ally 1 fools: leaflet-blades ovate or 
oval: shee solita ry in the upper axils or 1, 2, or 3 together at the ends of 
the bran peduncles and pedicels villous and more or less glandular- 
hispid: A elliptic, 1-1.5 em. long: fruits hemispheric, 1.5-2 cm. in 
diameter, black.—Open woods, ener and clearings, various provinces N of 
Coastal Plain, N. C. to Ont. and Con 
13. R. ieri uad pud Stems decumbent, trailing, 1—2 ^n long, gla- 
brous, sparingly armed wi mall, reeurved prickles: leaves of the turions 
3-foliolate, or rarely 5- foliolate, deciduous: leaflet- blades softly pubescent, 
S 
ering br es 3-foliol wi al ovate, doub oothed, and some- 
what lobed blades, or 1-foliolate and with an orbicular-ovate or cordate often 
3-lobed blade: flowers solitary in the axils of the upper leaves, one, or e- 
i 2 or 3 t n f the branches, the peduncles inu pilose: petals 
elliptic, 10-14 mm. long: fruit he emispheric, black, 10-15 mm. in diameter, the 
dru upelets glabrous —Hillsides and thickets, various provinces N of Coastal 
ain, N. kla., Kans., Ont., and Mass.—RA. roribaccus Rydb. appears 
to be a hybrid between R. [X Das flagellaris. 
14, R. Enslenii Tratt. Stems glabrous, ultimately prostrate or ascending, 
1.5 m. long or less, sparingly pod uM -priekly: leaves of the turions 3-foliolate: 
leaflet-bla E glabrous or n ly pubescent on the veins, pe ciliate, mem- 
rh o ser of the 
flowering pesa e 3. ‘foliolate, with ades similar to thos of the other leaves 
but smaller and relatively broade er or l-foliolate: flowers mostly solitary at 
the ends of the branches: pedicels glabrous or nearly so: petals elliptic. -obovate, 
12-18 ae long: fr uit hemispheric, black. Rage soil, ~ Plain extend- 
ing into adj. provinces, Fla. to Tex., Mo., and M related plant, from 
` the Eom s of N. C. wi ith tel turions, petiol es, and ‘pedicels oe stalked 
glands and two kinds of pc kles on rions, has been described as R. 
she. R. " 5 i j 
relationship, is described as being 2—4 m. tall and growing in dense clumps, 
the stems glabrous, the leaflets rough- -pubescent beneath, the racemes 4-8- 
flowered. 
15. R. flagellaris Willd. Stem prostrate, often greatly Ed En 
with seattered, rather weak, recurved priekles: leaves of the tur 8—5-folio 
Jate; leaflet- bla des pubescent on both sides, often only on the ram benea th, 
ay apr angry: broadly ovate or rhombic- M eoarsely doubly se (io 
h 
Í pains g branches 3-foliolate with blades usually obovate 
oblanceolate: flow Sip eue n the upper axils or rarely 2—4 together; pedicels 
sparingly villous: qe elliptie-obovate, 10-15 mm. long: fruit hemispheric 
