Lustrostachys. | CXXXIII. ORCHIDEÆ (ROLFE). 155 
cited above, which is said to represent this species. A specimen, accompanied by a 
sketch, from the mountains of the Pangani Valley, German East Africa, Kirk ! appa- 
rently belongs here, 
6. L. Whytei, Zolfe. Stem short. Leaves oblong, obtuse, rather 
broad. Racemes stout, erect, 8-9 in. long, (—8-flowered. Bracts 
broadly ovate, subacute, cucullate, 8-10 lin. long. Pedicels 14-1} in. 
long. Flowers secund. Sepals triangular-lanceolate below, acuminate 
and much recurved above, 14-19 lin. long. Petals similar to the sepals, 
but rather smaller. Lip similar to the petals, but concave below , spur 
somewhat curved, 24-2} in. long, stout below, gradually tapering 
upwards. Column very stout, 2 lin. long. 
Mozamb. Dist. British Central Africa : Mlanje Plateau, Whyte, 102! 
The habit of the plant is described from a photograph. A fruiting specimen 
collected by Scott-Elliot during the Ruwenzori Expedition, without locality, may 
belong here. 
1. L. Erythrzeze, 2olfe. Stem 3 in. high. Leaves 8-9, linear- 
oblong, shortly, obtusely, and unequally bilobed, 5—6 in. long, 5-6 lin. 
broad. Raceme arcuate, 3 in. long, with 2 or 3 broad, basal sheaths 
6—7-flowered. Bracts ovate-oblong, subacute. Capsules clavate-oblong, 
stoutly pedicelled, 1-1} in. long.— Angraecum schimperianum, Schweinf. 
in Bull. Herb. Boiss. ii. App. ii. 90 (not Reichb. f.). 
Nile Land. Eritrea: Ginda, near Girsa, 1900 ft., Schweinfurth, 387! Ginda 
Valley, 3200-4900 ft., Schweinfurth, 2143! 
This is very different from Angrecum schimperianum, Reichb. f., to which it is 
referred by Schweinfurth ; and although the specimen seen is only in fruit, the habit 
is so characteristic as to leave little doubt that this is its proper affinity. 
5. L. ringens, Reichb. f. in Gard. Chron. 1878, x. 266. Plant 
dwarf, 3 in. high. Leaves cuneate-oblong, obtusely bilobed, 3 in. long, 
l in. broad near the apex. Racemes few-flowered, secund, 3 in. long. 
Bracts triangular, considerably shorter than the long, pedicelled ovary. 
Flowers yellowish-white. Sepals triangular, reflexed or recurved. 
Petals rhomboid-ligulate, reflexed. Lip rhomboid-lanceolate, with a 
blunt angle on each side before the mouth of the spur; spur ample, 
cylindrical or filiform, obtuse, more than twice as long as the pedicels, 
l% in. long. Column short; rostellum short, not beaked. 
Upper Guinea. Cameroons : cultivated specimens. 
Flowered in the Botanic Garden, Berlin, in 1878. Only known to me from the 
original description, where it is said to form a connecting link between the L. arcuata 
and the L. filicornis groups, but to differ from both of them by its short, unbeaked 
rostellum, 
9. L. bistorta, Rolfe. Stems climbing, rooting. Leaves linear- 
oblong, shortly and unequally bilobed, 3-5 in. long, {-1} in. broad; 
lobes rounded. Racemes few-flowered, 2} in. long. Bracts broadly 
tubular, 2 lin. long ; apex obtuse and suboblique. Pedicels 4 lin. long. 
Flowers secund. Sepals ovate-lanceolate, subattenuate at the apex, 
