68 RYDBERG: NOTES ON ROSACEAE 
Leaflets broadly oval, thin, 
2-5 cm 
early unarmed. 20. R. salictorum. 
Leaflets narrowly oval or 
oe less than 3 
m. | 
eae eee: prickles 
ew 21. R. uliramontana. 
al 
Leaflets thin; prickles 
umerous. 22. R. gratissima. 
Sepals ovate, less than 1 cm. long, not conspicu- 
ously caudate; leaflets glandular-double- 
toothed, glabrous or slightly glandular-granu- 
liferous beneath. ae 
Hypanthium elongate, with a distinct neck. 
Hypanthium glabrous. 
Leaves finely puberulent Tee fruit 
elliptic; plant unarmed or 
Leaves glabrous; fruit vrvahape prickles 
rather stout, flattened belo 
Hypanthium pilose when young, ellipsoid; 
leaves pilose, densely so and glandular- 
granuliferous beneath, 2 
Hypanthium densely bristly or prickly. 
Leaflets thin, usually more than 1.5 cm. long, not 
Dancers; sepals more ¢ ant I cm. long. 
T ‘1 
. R. Bolanderi. 
w 
24. R. Pringle. 
aS 
25. R. Copelandii. 
un 
an 
. R. pilifera. 
teeth us gaity ideeeclictelt in outline, 27. 
Leaflets sparingly glandular-granuliferous be- 
neath; teeth ovate in outline. 2 
Leaflets » Slaucous, less than 1.5 cm. long; 
sepals less than 1 cm. Iong. 29. R. sonomensis, 
R. granulata. 
~ 
~ 
. R. spithamaea, 
Ill. MuInuTIFoLiar 
One species. 2 
° 
. R. minutiflora. 
-IV. GyYMNOCARPEAE 
Leaves glabrous beneath; prickles very slender. 
Flowers usually solitary, not leafy-bracted; stipules nar- 
row; leaflets with lanceolate teeth; fruit 6 mm. in 
iameter or less 
—_ 5-9, ae more than 1.5 cm. long, the 
erminal one rounded at the base. 
Sao: 7-9, usually less than 1.5 cm. long, the terminal 
one usually acute or cuneate at the base 2. R. prionota,. 
Flowers mostly 2-4 together, leafy-bracted; ‘ase stipules 
broadly dilated; leaflets with broadly ovate teeth; fruit : 
6-8 mm. broad. 33. R. dasypoda. a 
Leaves pubescent beneath; prickles usually stouter. 34. R. Bridgesii. 
I. CANINAE. The members of this group are natives of the 
ies) 
lal 
. R. gymnocarpa. 
