334 
OBCHiDEiE. (S. Moore.) 
[. Habenaria . 
Mauritius, banks of Riviere du Poste and of Grande Riviere sud-est, Bojer. 
Also Bourbon. In Thouars’ figure the arms of the anther are represented as turned 
upwards. As this is not a character of Habenaria, the propriety of placing the 
plant in that genus has been justly questioned by Bindley. I have seen no 
specimen. 
5. H. ? mascarenensis, Spreng. Syst. Veg. iii. 690. Tubers 
oblong, becoming attenuated and root-like below. Leaves radical, 
spathulate-oblong, acute, 1\ in. long, about J in. broad. Scape erect, 
nearly 1 foot high, with a few scattered, sheathing scales ; flowers 
rather closely packed ; bracts lanceolate, ± in. long (or less). Sepals 
subequal, ovate-oblong, acute. Petals shorter, lanceolate. Labellum 
about the same length as the sepals, 3-lobed ; lobes oblong, obtuse ; 
mid-lobe the longest ; spur linear, obtuse, arching forwards, about four 
times as long as the labellum. Satyrium rosellatum, Thouars , Orch. 
■Afr. t. 8. Gymnadenia rosellata, Rich . Orch. Maur. 27 ; Lindl. Gen. 
nd Sp. Orch. 279. 
Mauritius, Trois Mamelles, Creve-coeur, and Mare aux Yacouas, Bojer. Also 
Bourbon. I have seen no specimen. 
4. PERISTYLUS, Bl. 
Characters of Habenaria , but the labellum is usually small, the spur 
very short, and the stigmatic lobes do not project downwards. Dis- 
tbib. A considerable genus, found chiefly in temperate regions of both 
worlds ; there is perhaps one in South Africa. 
Flowers about ^ in. diameter. Labellum entire. 
Leaves ovate-lanceolate. Labellum with the terminal 
border entire or toothed ; spur linear, straight ; 
ovary glandular-hairy 1. P. citrinus. 
Leaves linear. Labellum cuspidate ; spur clavate, 
arching forwards ; ovary glabrous 2. P. ? pcrpuretts. 
Flowers 4 in. diameter (or less). Labellum 3-lobed. 
Leaves lanceolate-oblong, congested near the bottom 
of the stem. Flowers \ in. diameter ; spur clavate, 
much shorter than the labellum 3. P. latifolius. 
Leaves linear-lanceolate, congested near the bottom of 
the stem. Flowers ^ in. diameter ; spur as in P. 
latifolius 4. P. spiralis. 
Leaves linear-lanceolate, scattered. Flowers ^ in. dia- 
meter ; spur linear, almost as long as the labellum . 5. P. ? gramineus. 
Leaves lanceolate, radical. Flowers £ in. diameter; 
spur obtuse, in. long 6. P. flexuosus. 
1. P. citrinus, Lindl. Gen. and Sp. Orch. 298. Tubers clavate, 
fascicled. Leaves ovate-lanceolate, acute or acuminate, about 4 in. 
long, 1 in. broad, congested near the base of the stem. Stem nearly 
1 foot high, erect, terete, with a few scattered lanceolate sheathing 
scales between leaves and flowers ; bracts ovate-lanceolate, about in. 
long, glandular-hairy ; flowers subsessile, somewhat scattered. Sepals 
oblong, obtuse, as long as the lanceolate petals. Labellum a little 
larger than the other perianth-segments entire, narrowly cuneate, the 
