Deroemerm.] cxxxiii. orchtde.e (rolfe). 197 



4. D. Schimperi, Eol/e. Plant glabrous. Leaf orbicular-reni- 

 form, 1-J 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 h as long as the ovary. — Ilolofhrix 

 Schimperi, Reichb. f. Otia Bot. Hamb. ii. 108. 



irile Iiand. Abyssinia, cultivated specimens, Schimper. 



Flowered in the Hamburg Botanic Garden, before 1881. I have not seen it. 



5. D. prsecox, Rendle <& ScMechter inJourn. 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 prcecox, Reichb. f . Otia Bot. Hamb. ii. 108. 



WTile Iiand. Abyssinia : Semen ; near Debra Erki, in the shade of trees, amongst 

 Tocks, 9400 ft., Schimper, 1536. 



Only known to me from the original description. 



6. D. triloba, Rolfe. Plant G-9 in. high, with several narrowly 

 acuminate sheaths below the raceme. Leaves not seen. Racemes 2J— 

 5J in. long, subsecund, many-flowered. Bracts lanceolate or ovate- 

 lanceolate, acuminate, 2-o^ lin. long. Pedicels lJ-2 lin. long. Sepals 

 ovate, apiculate, If lin. long. Petals lanceolate-oblong, 4 lin. long, 

 divided almost to the middle into 3 linear lobes. Lip oj 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. 



IMEozaml). 3>lst. German East Africa : higher plateau north of Lake Nyasa, 

 Thomson ! 



7. D. unifolia, Reichh.f. in Bowplandjia^ 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, \ as long as the ovary. — reristyliis uni- 



f alius, Hochst. ex Reichb. f. in Bonplandia, iii. 213. Holothrix unifolia^ 

 Reichb. f. Otia Bot. Hamb. ii. 119 ; Engl. Hochgeb. Fl. Trop. Afr. 178. 



xrile Xiand. Abyssinia: Semen; in dry meadows near Debra Eski, 9300 ft., 

 Schimper, 129. 



Only known to me from the original description. 



