Deremeria. | CXXXIII. ORCHIDEÆ (ROLFE). 197 
4, D. Schimperi, folfe. Plant glabrous. Leaf orbicular-reni- 
form, 1} in. broad. Peduncles with many sessile, lanceolate, acuminate 
sheaths. Racemes spiral. Bracts triangular, acuminate, 3-nerved, 
nearly as long as the ovary. Sepals lanceolate, triangular, 1-nerved. 
Petals ligulate; apex tridentate; apical tooth extending beyond the 
side lobes. Lip cymbiform; apex acute or subtrilobed ; middle lobe 
acute ; spur arcuate, acute, scarcely 4 as long as the ovary.— Holothriz 
Schimperi, Reichb. f. Otia Bot. Hamb. ii, 108. 
Nile Land. Abyssinia, cultivated specimens, Schimper, 
Flowered in the Hamburg Botanic Garden, before 1881. I have not seen it. 
5. D. przecox, Rendle & Schlechter in Journ. Bot. 1895, 277, Plant 
11 in. high, slender, not hairy, aphyllous when flowering; sheaths 
about 10, triangular, aristate. Racemes elongate, secund. Bracts lan- 
ceolate, as long or slightly shorter than the ovary. Sepals triangular, 
unequal, dorsal longer than the lateral. Petals oblong, retuse at 
the apex, angled on either side, extended from the sinus into a straight 
thread, or in the upper flowers into several threads. Lip adnate to the 
base of the column, boat-shaped, oblong, acuminate, apex deflexed, with 
a lateral tooth on either side, sometimes long-toothed, sometimes fili- 
form ; spur filiform, as long as the ovary, or longer in the lower flowers. 
—Holothrix precox, Reichb. f. Otia Bot. Hamb. ii. 108. 
Nile Land. Abyssinia: Semen; near Debra Erki, in the shade of trees, amongst 
rocks, 9400 ft., Schimper, 1536. 
Only known to me from the oriyinal description. 
6. D. triloba, Rolfe. Plant 6—9 in, high, with several narrowly 
acuminate sheaths below the raceme. Leaves not seen. Racemes 2}— 
5$ in. long, subsecund, many-flowered. Bracts lanceolate or ovate- 
lanceolate, acuminate, 2-34 lin. long. Pedicels 14-2 lin. long. Sepals 
ovate, apiculate, 1? lin. long. Petals lanceolate-oblong, 4 lin. long, 
divided almost to the middle into 3 linear lobes. Lip 34 lin. long, 
oblong, apical third divided into 3 linear lobes, the entire base broadly 
elliptic-oblong ; spur cylindrical, acute, curved, 3 lin. long. Column 
very stout, 1 lin. long. Rostellum triangular, acute, minute. 
Mozamb. Dist. German East Africa: higher plateau north of Lake Nyasa, 
Thomson ! 
_ 1. D. unifolia, Reichb. f. in Bonplandia, iii. 213. Plant 4-5 in, 
high. Tuber fusiform or ovate. Leaves orbicular, somewhat acute, 
cordate. Scapes retrorsely hispid, upper part with several sessile, 
triangular, acuminate sheaths. Racemes cylindrical, secund. Bracts 
slightly exceeding the flowers. Sepals ovate, acute. Petals cuneate, 
ovate, acuminate, longer than the sepals. Lip oblong; apex minutely 
5-lobed ; spur cylindrical, acute, 4 as long as the ovary.—Peristylus uni- 
Zeite, Hochst. ex Beicht, f. in Bonplandia, iii. 213. Holothrix unifolia, 
Reichb. f. Otia Bot. Hamb. ii. 119; Engl. Hochgeb. Fl. Trop. Afr. 178. 
_ Nile Land. Abyssinia: Semen; in dry meadows near Debra Eski, 9300 ft., 
Schimper, 129, 
Only known to me from the original description. 
