, 
220 i PLANTÆ DELAVAYANÆ 
plus souvent les axes couverts de petits aiguillons sétiformes, parfois entre- 
mélés de gros aiguillons crochus. 
6. R. sericea Lindl., Ros. Monogr., p. 105, tab. 12; Crépin, Zee, 
Ey p. 9; Forbes et Hemsl., Znd. /7. Sin. I, p. 234. 
Forma g/abrescens. — Foliola parva, glabra vel tantum subtus ad 
nervum pilosula; aculei graciles, recti vel parum curvati, basi vix 
dilatati, saepius gemini; flores parvi (diam. 20-30 mill), albi; recep- 
taculum glabrum. 
Yun-nan, in monte Tsang-chan, supra Tali; fr. 20 sept. 1884 
(Delavay, n. 289, 744); Likiang, in silvulis fere ad nives perpetuas, 
alt. 3500 m.; fl. 11 jul. 1884 (Delavay, n. 1140); Fang-yang-tchang, 
supra Mo-so-yn, alt. 2840 m. ; fl. 17 jun. 1887 (id. 2840 m.) 
Forma intermedia. — Foliola parva, subtus tenuiter pubescentes; 
aculei plerique basi dilatati, compressi ; flores diam. 30-35 mill. ; recep- 
taculum glabrum. ? 
In collibus ad collum Lo-pin-chan, supra Lankong, alt. 3200 m.; 
fl. 25 maj. 1886 (Delavay, n. 2332). 
Forma pøeracantha. — Rami sæpius setulis brevibus dense vestiti; 
aculei compressissimi, valde dilatati, sæpius basi elongata confluentes, 
unde caulis quasi interrupte alati; ramuli florentes breves simul ac 
foliola majuscula utraque facie sericeo-tomentella; flores albi majus- 
culi, diam. 35-50 mill.; receptaculum sub anthesi extus tomentellum, 
demum glabrum. : 
Yun-nan, in collibus calcareis prope collum Hee-chan-men, supra 
Lan-kong, alt. 2800 m. ; fl. 22 maj. 1886 (Delavay, n. 861); in faucibus 
Lan-kien-ho, prope Mo-so-yn, alt. 2500 m.; fl. 26 april 1884 (id.); 
Hee-chan-men, in collibus ad Kan-hay-tze; fr. 23 jun. 1887 (id.). 
Forma denudata. — Foliola majuscul , subtus etiam i vo medio 
glaberrima ; receptaculum glabrum. 
Yun-nan, in silvis ad Yu-kia-ngan, supra Houang-kia-pin ; fl. 3 jul. 
1888 (Delavay, n. 3303). 
R. microphylla Roxb, ex Lindl., Ros. Monogr., p. 9 et 145; 
D, Zoc. cit., p. 10; Forbes et Hemsley, d. Ål. Sin, I, p. 252. > 
Yun-nan, in sepibus ad Tali; fl. 14 jun. 1884 (Delavay, n. 1138, 
T> 
Crépi 
642, 2424); Tchen-fong-chan, præfect. Takouan; fr. maj. 1882. 
