Bonatea.] cxxxiii. orchide^ (rolfe). 255 



6. B. Kayseri, Holfe. Stem strong, leafy (base not seen). Leaves 

 lanceolate-oblong, acute, amplexicaul, 3-5J in. long, 1-2| in. broad. 

 Racemes about 7 -flowered. Bracts lanceolate or oblong-lanceolate, 

 acuminate, lJ-2 in. long. Pedicels 2-3 in. long. Dorsal sepal ovate, 

 shortly acuminate, 8-9 lin. long; lateral obliquely cuneate-obovate, 

 apiculate below the apex, 14 lin. long, adnate J its length to the base of 

 the lip, stigmatic processes, and the anterior lobe of the petals. Petals 

 bipartite ; posterior lobe narrowly linear, as long as the dorsal sepal 

 and united to the edge of it ; anterior lobe narrowly elongate-linear, 

 2J in. long. Lip deeply trilobed ; claw 1 in. long, the upper third 

 free; side lobes similar to the anterior lobe of the petals, 2| in. long; 

 front lobe IJ in. long; spur slender, 6 in. long, slightly thickened near 

 the apex. Stigmatic processes 1;^ in. long ; apex subspathulate, re- 

 curved. Anther channels slender, j lin. long. Rostellum cucullate, 

 apiculate, 4 lin. long. Staminodes oblong, 1 lin. long. — Hahenaria 

 Kayseri, Kranzl. in. Engl. Jahrb. xix. 246; Engl. Pfl. Ost-Afr. C. 

 152, t. 7. 



nCozamb. Dist. German East Africa : Usambara ; Mlalo, Hoist, 635, 2443 ! 

 Kilimanjaro ; Marangu, on hillocks, Volkens, 630. 



40. PLATYCORYNE, Reichb. f.; Benth. et Hook. f. Gen. PI. iii. 



632. 



Dorsal sepal erect, broad, cucullate ; lateral free, reflexed, narrow. 

 Petals free or sUghtly adnate to the base of the column, narrow, 

 entire or rarely unequally bilobed. Lip continuous with the base 

 of the column, produced at the base into a filiform or clavate spur; 

 limb spreading, entire or unequally trilobed. Column short, foot- 

 less; clinandrium erect, as long as the anther. Anther erect or 

 suberect ; cells parallel, apex inferior, produced into somewhat diverg- 

 ing channels, confluent with the side lobes of the rostellum ; pollinia 

 granular, with elongate caudicles and exserted naked glands ; stami- 

 nodes lateral, rounded or auriculate. Stigma bilobed, or extended into 

 two short thick processes ; rostellum trilobed ; middle lobe narrow, 

 more or less cucullate ; side lobes broad and short. Capsule oblong. — 

 Slender, terrestrial herbs. Leaves few, basal, small or narrow. Flowers 

 rather small, in short or few-flowered racemes. Bracts broadly ovate, 

 cucullate. 



A genus of nine Tropical African species, with an outlying representative in 



Madagascar. Bentham refers it to the DisecB, where it is clearly out of place, and 



Kranzlin unites it with Hahenaria, though I think it can be maintained on account of the 



cucullate middle lobe of the rostellum, short thick stigmatic processes,and marked habit. 



Petals simple. 



Spur 1-li lin. long . , , . . . 1. P. aurea. 



Spur 4-7 lin. long. 



Lip simple or obscurely toothed or auricled at the 

 base. 

 Western species. 



Spur not much longer than the sepals . . 2. P. paludosa. 



Spur twice as long as the sepals . . . 3. P. Wilfordii. 



