112 cxxxiii. ORCHiDKE (rolfe). [Polyatochya. 



broader base, recurved, li-2 lin. long. Dorsal sepal ovate-oblong, 

 acute, 2i^3 lin. long ; lateral triangular, acuminate. Petals sub- 

 spathulate-lanceolate, acute, 2 J lin. long. Lip 4 lin. long, cuneate- 

 unguiculate at the base ; limb broadly ovate or subtrilobed ; side lobes 

 broadly rounded ; front lobe ovate, subacute, undulate, recurved ; disc 

 smooth with a pair of parallel linear- oblong calli in the centre. Chin 

 saccate-oblong, obtuse, 3 lin. long. Capsule oblong, 10-13 lin. long. 



WUe Iiand. British East Africa: Ruwenzori; Wimi, 7000-8000 ft., among 

 tree-ferns, Scott-Elliot, 7897! Butagu, 9000-10,000 ft., among heather, Scott- 

 miiot, 7958 ! 



14. P. Rendlei, Rolfe. Plant J-3 ft. high. Stems cylindric, 

 2-5-leaved. Leaves linear-oblong, obtuse, 2-3f in. long, 4-5 lin. 

 broad. Panicles 1^2 in. long, many-flowered. Bracts triangular- 

 ovate, acute or acuminate, 1-2 J lin. long. Dorsal sepal triangular- 

 ovate, acute, 2 J lin. long ; lateral broadly triangular, acute. Petals 

 subspathulate-lanceolate, acute, with narrow base, 2J lin. long. Lip 

 3 lin. long, unguiculate ; limb obscurely trilobed ; side lobes very 

 broadly rounded ; front lobe small, oblong, obtuse ; disc puberulous ; 

 crest central, broadly oblong with raised margins. Chin saccate-oblong, 

 obtuse, 3 lin. long. Capsule oblong, 8-11 lin. long. — Polystachya, n. sp. 

 Rendle in Trans. Linn. Soc. ser. 2, iv. 46. 



Mozamb. »iBt. British Central Africa : Mlanje, Whyte ! Zomba, 6000-7000 

 ft., Kirk ! 



The plant turns black in drying. 



15. P. Krsenzlinii, Rolfe. Plant 9-12 in. high. Stems cylin- 

 dric, 3-5-1 eaved. Leaves oblong, minutely bidenticulate, 2J-4 in. 

 long, 6-9 lin. broad. Panicles nearly sessile, 1J-2J in. long. Bracts 

 triangular-ovate, acute, 1^2 lin. long. Pedicels 4 lin. long. Dorsal 

 sepal triangular-ovate, acute, 3 lin. long ; lateral broadly triangular ; 

 apex falcate- acuminate. Petals subspathulate-lanceolate, acute, 2| lin. ' 

 long. Lip 3 lin. long, unguiculate, subtrilobed ; side lobes broadly 

 rounded ; front lobe triangular, acute ; disc puberulous with a central, 

 roundish- oblong tubercle. Column stout, J lin. long. Chin saccate- 

 oblong, obtuse, 2J lin. long. — P. shirensi^, Kranzl. in Engl. Pfl. Ost- 

 Afr. C. 155 (not Reichb. f.). 



Mozamb. X>lst. German East Africa : Usambara ; Mascheua, 6200 ft., on 

 trees, Hoist, 8748 ! 



Very difiFerent from P'. sMrensis, Reichb. f., to which Kranzlin refers it. It turns 

 black in drying, and is near P. Sendlei, Rolfe, and P. itnbricata, Rolfe. 



16. P. imbricata, Rolfe in Kew Bulletin, 1893, 172. Plant 4-6 

 in. high. Stems erect, 2-3-leaved. Leaves oblong-linear, acute, 3-5 J- , 

 in. long, 2-6 lin. broad. Inflorescence a dense, branched, congested 

 panicle, 1-4 in. long. Bracts ovate, acuminate, imbricate, rigid, 1-2 

 lin. long. Pedicels 3 lin. long. Dorsal sepal ovate-oblong, acute, 3 lin. 

 long; lateral triangular, acuminate. Petals subspathulate-oblong, 

 subobtuse, 2 lin. long. Lip trilobed, 3 lin. long, broadly semi- 

 ovate, obtuse ; side lobes broadly rounded ; front lobe triangular- ovate, 



