OKCHIDACE^ (A. B. Eeiidle) 103 



Polystaehya Dorotheae Kendle sp. nov. Caules subcom- 

 pressae approximatae basi paullo inflatae et vaginis scariosis 

 circumdatae ; foliis caulinis 4 e vaginis elongatis tubuliformibus 

 lineari-oblongis xel lineari-oblanceolatis apice inaequali acutius- 

 culis ; scajjo elongate bracteis scariosis parte inferiore tubuli- 

 formibus arete vestito superne nudo et puberulo ramoso, ramis 

 multifloris ; hracteis florentibus ovatis superne acuminatis et 

 recurvatis;/c»j-/fc»s inter mediocres glabri ; sepalo dorsale elliptico- 

 oblongo obtuso mucronato, sepp. lateralibus triangulari-oblongis 

 subito et breviter acutis mentum obtusum efformantibus ; petalis 

 linearibus apice spathulatis ; lahello trilobo basi cum crista 

 mediana sufFulto, lobis lateralibus late oblongis apice rotundatis 

 margine integro, lobo mediano lato emarginato crenulato medio 

 cristato; capsula subsessili fusiformi. (PI. 13, figs. 3, 4.) 



Oban ; n. 861. 



Plant 6 cm. high. Stem leafy below, passing above into the 

 panicle. Leaves 10-30 cm. long, 2-3 cm. broad. Panicle 18 cm. 

 long, branches (in fruit) to 8-5 cm. long. Flowering bracts 3 mm. 

 long. Dorsal sepal 4" 5 mm. long; lateral sepals, greatest length 

 7 mm., chin 4'5 mm. Petals 4-5 mm. long, broadening at the apex 

 to • 7 mm. ; lip 6 mm. long, greatest breadth 4 ' 5 mm. Column short, 

 thick, 2 mm, long. Fruit 17-18 mm. long. 



A member of the tcsscllata group of species, and from the descrip- 

 tion and figure near the Congo species P. Huyghei De Wild., but 

 distinguished by details of the Hower such as blunt dorsal sepal and 

 lip-lobe, spathulate petals, &c. 



Polystaehya nigeriea Rendle sp. nov. Species inter minores 

 caulibus compressis basi in pseudobulbum f usiformem incrassatis ; 

 foVds distichis a vagina compressa siccis sejunctis, lamina e basi 

 plicata iigulata apice inaequali obtusa emarginata ; scapo supra 

 folia bracteis binis compressis spathaeformibus vestito puberulo 

 densifloro ; hracteis florentibus e basi triangulare setaceis flores 

 excedentibus saepe reflexis ; florihus parvis glabris breviter 

 pedicellatis ; sepalo dorsali late ovato concavo acuminato, sepp. 

 lateralibus triangulari-ovatis breviter caudatis, mento late 

 rotundato ; petalis lineari-acutis ; lahello trilobo lobis lateralibus 

 rhomboideis erectis, lobo mediano ovato-acuminato ; columna 

 brevi crassa, rostello dentibus binis acutis instructo. (PL 13, 

 figs. 5-9.) 



Oban ; n. 929. 



Stems 10-17 cm. high, surrounded at the base by a mass of 

 slender roots, and often associated with the persistent remains of 

 stems of previous seasons. Leaves 4-11 cm. long, 9-13 mm. broad, 

 separating from the persistent sheaths when dried. Raceme to 7 cm. 

 long, or more. Floiuerinq bracts to 8 mm. long. Dorsal sepal 

 2 '5-2 '75 mm. long; lateral sepals 3*5 mm. long, length of base 

 2' 5 mm. Petals 2' 5 mm. long; lip 2*6 mm. long; latei-al lobes 

 1 • 5 mm. long ; mid-lobe 1 ' 75 mm. long. Column 2 • 5 mm. long. 

 Ovary with pedicel glabrous, 3 mm. long. 



