20 THE ORCHID REVIET. 
seen in the revised synonymy given below, where also the differences 
between them and other details are pointed out, and this will enable those 
who possess plants to label them correctly. 
1. A. EBURNEUM, Bory Voy. Iles Afr., I. (1804), 359, t- 19 ; Thouars Orch. 
Iles Afr., t. 65; A. Rich. Orch. Iles Fr. et Bourb., p. 71; Lindl. Gen. and 
Sp. Orch., p. 2.45, in part; Rchb. f. in Walp. Ann., VI., p. 904; S. Moore 
in Baker Fl. Maurit., p. 356, in part. 
Limodorum eburneum, Willd. Sp. Pl., 1V. (1805), p. 125. 
Angroecum virens, Lindl. Bot. Reg., XXXIII. (1847), sub. t. 19; Paxt. 
Fl. Gard., I., pp. 25, 26, fig. 9, 10; Rchb. f. in Walp. Ann., I., p. 7923 
Orchidophile (1884), pp. 72, 73, with fig. 
A. eburneum var. virens, Hook. Bot. Mag., LXXXV. (1860), t. 5170; 
Veitch Man. Orch., VII., p. 126; Will. Orch. Gr. Man., ed. 7, p. 98. 
The original species, and only known from the island of Bourbon. It 
has much smaller flowers than the others, the segments being about 1} to 
1} inches long, the lip ovate and shortly acuminate, and the spur about 
24 to 23 inches long. 
2. A. SUPERBUM, Thouars Orch. Iles Afr. (1822), tt. 62-64; Lindl. Gen. 
and Sp. Orch., p. 245; Rchb. f. in Walp. Ann., VI., p. 904; Ellis Three 
Visits to Madag., p. 172, with fig. ; Ill. Hort., VIII., Misc., p- 77, with fig. ; 
Orchidophile (1885), p. 168, with plate; Will. Orch. Gr. Man., ed. 7, p- 97; 
with plate. 
A. eburneum var. superbum, Gard. Chron., 1873, pp. 216, 217, fig. 46; 
Lindema, V., p. 91, t. 236. 
Aérobion superbum, Spreng. Syst. Veg., III. (1826), pe 738. 
A. eburneum, Lindl. Bot. Reg., XVIII. (1832), t. 1522 (not of Bory); 
Bot. Mag., t. 4761; Batem. Sec. Cent. Orch., t. 111; Orch. Alb., I., t. 413 
Vettch Man. Orch., VI1., p. 126, in part ; Will. Orch. Gr. Man., ed. 7, p- 97; 
in part. 
Only known from Madagascar, where it occurs in various localities, and 
is noted as most abundant between Tamatave and Antananarivo. The 
flowers are much larger than in the preceding, the lip as broad or broader 
than long, the segments 13 to 13 inches long, and the spur 2} to 3} inches 
long, and rather stout. 
3. A. Bronce TIANUM, Rchb. f. in Pescatorea (1854), t. 16; Rchb. f. 
in Walp. Ann., VI., p. go4. 
A. eburneum, S. Moore in Baker Fl. Maurit.. VI. (1877), p. 356, in 
part (not of Bory). 
A native of Johanna Islands and others of the Comoro group, also of the 
Seychelles, where it seems to be pretty common. The flowers are rather 
large, the sepals and petals being 12 to 2} inches long, the lip broadly 
ers 
eet ee 
