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pairs, 1-2 mm. apart. Inflorescence like that 
of A. venenata, somewhat more crowded, gla- 
brous; calyx lobes 1 .2-1.8 mm. long, not ciliate; 
corolla like that of A. venenata, the tube about 
2 cm. long, the lobes 1 cm. long; anthers 2.2- 
2.6 mm. long; stigma-apiculi very small; follicles 
4-7 cm. long; cilia of seeds white. 
Type. — "Rochets de Kiang-ti, 2.300 m. juilL, 
1912 (E. E. Moire) . n In Cat. PI. Yun-Nan 
279, under "Additions et Corrections,” Leveille 
places A. Mairei in synonymy of A. venenata, 
but the two are amply distinct. 
Illustrations. — Sunyatsenia (1934) 2: t. 
21 (as A. paupera; leafy br. and infl., fl., fr., 
pistil). 
Distribution. — China: Yunnan and Szech- 
wan; in arid soils at high altitudes. 
Yunnan: Handel-Mazzetti 696 (type of A. 
paupera; photo of fruiting specimen only; A ) ; 
Make (portion of type; A); Moire (cotype 
Wikstroemia Hemsleyana; A). 
Szechwan: T. T. Yu 1344 (Hai-Chang Hsien; 
fl. and fr.; A). 
Cotypes of Wikstroemia Hemsleyana . — 
"Yun-Nan: rochers de Ta Tchai 500 m.; 
rochers derriere Kiao-Kiao 450 M., montagnes 
de Mo-Tsou, 800 m., avril-juillet 1911, 1912 
(E. E. Make).” 
Type of A. paupera. — "Prov. Yunnan: Eius- 
dem ditionis im rupestribus aridis infra vicum 
Tschenminte ca. 1300 m, legi 18. III. 1914.” 
The label of the type gives the collection num- 
ber 696 and has the following data: "In faucium 
fluvii Djinscha-djiang ("Yangste-kiang”) ad 
viam directam inter Yiinnanfu et Huili re- 
gione subtropica, in valle torrentis inter vicos 
Homondschang et Bodschagwan. Substr. con- 
glomerate rupium; alt. s. m. ca. 1550 m.” 
Tsiang (1936: 139) places the species in 
synonymy of A. Maker, he does not indicate 
whether he examined the type. 
13. Alstonia Curtisii King & Gamble, in Jour. 
As. Soc. Beng. 74 (2): 439. 1907. 
Closely resembling A. Mairei; lateral nerves 
of leaf blades 35-50 pairs; inflorescence more 
sparsely flowered than that of A. Maker, calyx 
lobes not ciliate; corolla tube about 3 cm. long, 
inflated at about one-fourth below mouth and 
characteristically constricted at throat for a 
length of about 5 mm.; anthers about 2.8 mm. 
long, their tips reaching 5-6 mm. below mouth. 
Type. — "Kasoom: limestone islands, Curtis 
3242 A 
Distribution.— Malay Peninsula: Lower 
Siam: Curtis 3242 (type coll.; fl. and fr.; K, 
Sing). 
14. Alstonia rupestris Kerr, in Kew Bui. 1937: 
43. 1937. 
Blaberopus rupester Pichon, in Bui. Mus. 
d’Hist. Nat, Paris, II, 19: 300. 1947. 
Leaves closely resembling those of A. Curtisii 
but sessile. Inflorescence rather crowded, the 
pedicels comparatively short (up to about 3 
mm. long); calyx lobes not ciliate; corolla 
tubes about 7-8 mm. long; corolla lobes 2.5 
mm. long; anthers 1.4 mm. long (only buds 
seen); lobes of gland almost as broad and as 
long as the ovary; cilia of seeds brown. 
Type. — "Doi Chiengdao, c. 1800 m, on lime- 
stone rocks in open evergreen forest, Kerr 
5560 (type), Put 366.” 
Siam: Kerr 5560 (type coll.; fl.; BM, K); 
Put 366 (fr.; A, BM). 
15. Alstonia yunnanensis Diels, in Bot. Gard. 
Edin, Notes 5: 165. 1912. 
Alstonia Esqukolii Leveille, Cat. PI. Yun-Nan 
10. 1915. 
Acr onychia Esqukolii Leveille, Fl. Kouy- 
Tcheou 374. 1915. 
Shrubs 1-3 m. tall. Petioles very short or 
none. Leaf blades lanceolate, 7-18 cm. long 
and 2.5-4 cm. broad, hispidulous-pubescent 
beneath (at least along nerves); lateral nerves 
comparatively few and distantly spaced, 20-30 
pairs, 2-5 mm. apart. Inflorescence short- 
peduncled (peduncles 0.5-1 cm. long), small, 
about 2 cm. long and about as broad, sparsely 
flowered, hispidulous, the pedicels up to 8 mm. 
long; calyx lobes long linear-acuminate from 
an ovate base, acute at apex, ciliate, otherwise 
glabrous or nearly so; corolla tube about 1 cm. 
