Bonatea.] cxxxiii. orchidile (rolfe). 253 



1. B. Steudneriy Durand o& Schinz, Consj^ect. Fl. Afr. v. 90. Stem 

 strong, 8-5 ft. high. Leaves oblong, acute, with a cartilaginous 

 margin, decreasing upwards into the bracts. Racemes lax, about 20- 

 tiowered. Bracts oblong, acuminate, cucullate, 1 in. long. Pedicels as 

 long as the bracts. Dorsal sepal free, oblong, apiculate, arched, 10 lin. 

 long;, lateral oblong-triangular, adnate below to the base of the lip 

 and stigmatic processes, obliquely triangular above, 14 lin. long, 5 Hn. 

 broad. Petals bipartite ; posterior lobe linear, acute, with a very 

 shortly ciliate margin, cohering with the dorsal sepal ; anterior lobe 

 linear, acuminate, much shorter than the posterior. Lip tripar- 

 tite ; lobes linear, acute ; spur cylindrical, as long as the pedicels. 

 Stigmatic processes terete ; apex very broadly spathulate, porrect, 

 Anther channels elongate, straight. E-ostellum cucullate, fornicate, 

 apiculate, limb very setulose. — Habenaria Steudneri, Reich b, f. Otia 

 Bot. Hamb. ii. 101 ; Kriinzl. in Engl. Jahrb. xvi. 57 ; Engl. Hochgeb. 

 Fl. Trop. Afr. 179. 



BTile ILand. Eritrea: Bogos ; Keren, Steudner, 700. British East Africa : 

 Ukauiba ; Kitui, Sildehrandt, 2652. 



Only known to me from the original description. Reichenbach says that the type 

 is at Berlin, where, however, Kranzlin has been unable to find it. 



2. B. rabaiensis, Rolfe. Plant 10 in. high. Stem very stout, 

 leafy below the middle. Leaves about 3, oval or ovate, with a sheathing 

 base, 1^4 in. long. Racemes lax, few-flowered. Bracts membranous, 

 acuminate, nearly 1 in. long. Pedicels 1;| in. long. Flowers among 

 the largest of the genus. Dorsal sepal ovate, subacute, cucullate, 8 lin. 

 long ; lateral oblique, oblong, with a falcate-apiculate apex, 9 lin. long. 

 Petals bipartite ; posterior lobe linear, cohering to and about as long as 

 the dorsal sepal; anterior lobe 14 lin. long, filiform below, falcate above, 

 with recurved, almost aristate tip. Lip trilobed ; looes filiform, much 

 like the anterior lobes of the petals ; side lobes \^ in. long ; front lobe 

 1 in. long; spur cylindrical, stout, If in. long, slightly narrower below. 

 Stigmatic processes elongate, thickened above the middle and verrucose, 

 slightly recurved near the apex, 8 lin. long. Anther apiculate, a little 

 shorter than the rostellum-; channels slender, suberect, 4 lin. long. 

 Rostellum cucullate, with a strong projecting apiculus. — Habenaria 

 rabaiensis, Rendle in Journ. Linn. Soc. xxx. 390. 



Nile Iiand. British East Africa : Rabai Hills, near Mombasa, Taylor ! 



3. B. volkensiana, Rolfe. A stately plant, 2-2|- ft. high. 

 Leaves 3-| in. long. If in. broad, decreasing upwards into the bracts. 

 Racemes long, many-flowered. Pedicels about IJ in. long. Flowers 

 white. Dorsal sepal oval, acute, galeate, 7 lin. long ; lateral deflexed, 

 oblong, subacute, adnate below to the base of the lip and stigmatic pro- 

 cesses. Petals bipartite ; posterior lobe linear-lanceolate, acuminate, 

 appressed to the dorsal sepal, pellucid ; anterior lobe linear, very 

 acuminate, 1 in. long. Lip tripartite; side lobes similar to the anterior 

 lobe of the petals but a little longer ; front lobe linear, acute, rather 

 shorter than the side lobes ; disc with a small, erect, acute tooth in 



