Journal of the Linnean Society, Botany, 28: 55-56 (1891).
On a Collection of Plants from Upper Burma and the Shan States.
Brigadier-General H. Collett, C.B., F.L.S., and W. Botting Hemsley, F.R.S., A.L.S.

Rosa gigantea, Collett; Crépin in Comptes-Rendus Soc. Bot. Belg. 1888, p. 150, et 1889, p. 11; Gard. Chron. 3rd series, vi. p. 13. (Plate IX.).—Shan hills plateau at 4000 to 5000 feet; abundant, though local.

Also in Muneypore, where Dr. Watt discovered it in 1882, at an altitude of 6000 feet.

A lofty climber with very thick stems, very conspicuous in the forests by reason of its large white flowers. A walking-stick made from a stem of this Rose has been deposited in the Kew Museum.

It is doubtful whether this is more than a very luxuriant state of R. indica, Linn., for some of the older specimens have flowers no more than 2 to 2 1/2 inches in diameter, and the flowers are sometimes corymbose.

Flowering-branches of Rosa gigantea, Coll., natural size.
Fig. 1, portion of an older branch showing the shape and direction of the thorns, natural size; 2, two young capsules, enlarged; 3, a fruit, natural size; 4, a ripe carpel, twice natural size. The flowers drawn from Collett's specimens; the piece of old branch, fruit, and carpels from Watt's specimens.

Rosa Collettii, Crépin in Comptes-Rendus Soc. Bot. Belg. 1889, p. 49. (Plate X.).—Shan hills, 3000 to 4000 feet, common in certain localities on the banks of streams.

A branch of Rosa Collettii, Crépin, natural size.
Fig. 1, vertical section of the receptacle showing the carpels; 2, a single carpel: enlarged; 3, young fruit, natural size when dry.