drismdatio louwitar rurullatie tunhn <taminen exserto. lobis ad Î mr 
1938] MERRILL, INDO-CHINESE PLANTS 37 
apice obscure apiculato, petalis reliquis angustioribus, rotundatis; 
staminibus fertilibus 3, filamentis glabris, 3.5 cm. longis, staminoideis 2, 
glabris, 4-6 mm. longis; ovario pubescente, ovulis circiter 10. 
INpo-CHINA, southern Annam, Dalat, R. W. Squires 818, April 17, 
1931, climbing to a height of 20 m. in forests along river banks, flowers 
scarlet. 
A remarkable species characterized by its oblong-elliptic, entire or 
very slightly retuse, never cleft or divided leaves, its greatly elongated, 
terminal, simple, many-flowered simple racemes, and its characteristic 
flowers. Counting the lower pedicels from which the flowers have fallen 
and the numerous crowded buds in the upper part of the raceme, each 
individual raceme may bear in excess of 150 flowers. The racemes 
elongate gradually as the flowers develop. It is not closely allied to 
any of the 41 species admitted by Gagnepain as occurring in Indo-China, 
but in accordance with his arrangements falls in the group of those with 
three stamens and pubescent ovaries. 
RUTACEAE 
Boenninghausenia albiflora (Hook.) Rchb. ex Heynhold, Nomencl. 
Bot. Hort. 1: 126. 1840; Rehd. Jour. Arnold Arb. 14: 225. 1933. 
Ruta albiflora Hook. Exot. F1. #. 79. 1823-27. 
INpo-CHiINA, Tonkin, Chapa, alt. 1600 m., Petelot 4762, August, 
1933. India to Japan, southward to Luzon and Java. The genus is 
new to Indo-China. 
SIMARUBACEAE 
Aiïlanthus sutchuensis Dode, Bull. Soc. Dendr. France 1907: 192, fig. 
a. Repert. Sp. Nov. 7: 8. 1909. 
Ailanthus altissima (Müäll) Swingle var. sutchuensis Rehd. & Wils. 
(sutchuenensis) in Sargent, PI. Wils. 3: 449. 1917. 
INpo-CHINA, Tonkin, Chapa, Petelot 5832, August, 1930, alt. about 
1600 m. VYVunnan, Szechuan, Hupeh. 
Dode’s species is a weak one, very closely allied to Aëlanthus altissima 
(Mill.) Swingle, a common species in China, usually known as 4. 
glandulosa Desf. Rehder & Wilson may be correct in reducing it to 
varietal status under À. altissima. The fruits, however, are distinctly 
larger than in the latter species. 
40 JOURNAL OF THE ARNOLD ARBORETUM [voL.x 
Acalypha Evrardii Gagnep. Bull. Soc. Bot. France 70: 871. 192 
Lecomte F1. Gén. Indo-Chine 5: 336. 1925. 
Inpo-CHiNa, Malay Peninsula, Sumatra. 
) Metcaif, Lingnan SCE 14 
Aporosa yunnanensis (Pax & Hoffm. 
