104 SOUTH NIGERIAN PLANTS 



Near P. polychaete Kriinzl., but a smaller plant with larger 

 flowers, which differ in having tailed sepals, linear petals, and in the 

 characters of the lip. 



Polystaehya setieaulis Rendle sp. nov. Herba parvula 

 caulibus filiformibus pluribus in rhizomate brevi aggregatis, 

 rhizomate radicibus densis intertextis celato, caule supra basin 

 vaginis scariosis vestitam foliate ; foliis saepe 3 suberectis e 

 vagina basi anguste tubuliforme linearibus, apice mucronatis ; 

 racemo brevi paucifloro valde supra folia eminente ; hracteis 

 approximatis concavis e basi lata triangulari-ovatis acutis ; 

 flore (unus solum exstat) minuto luteo (?) breviter pedicellato ; 

 sepalo dorsali concavo elliptico acute, sepp. lateralibus transverse 

 extensis oblique ovatis acutis carinulatis, basi in mentum latum 

 rhomboideum obtusum productis ; petalts parvulis late ellipticis ; 

 labello indiviso e basi attenuata rhomboideo obtuso ; columna 

 brevi crassa late alata ; anthera superne rotundata antrorsum 

 rostrata ; capsula ellipsoidea. (PI. 13, figs. 10-12.) 



Oban ; n. 926. 



Plants 5-9 cm. high. Leaves jointed with the sheath about 2 cm. 

 long, 1 • 5 mm. broad ; mid-vein conspicuous on the lower face. 

 Baceme to 1 cm. long, sometimes with a short branch from the 

 thread-like basal bract. Flowering bracts 1 mm. long. Dorsal sepal 

 1 mm. long; lateral 1 mm. long, 2'3 mm. broad; chin equal to 

 dorsal sepal. Petal -lo mm. long; lip 1"75 mm. long, just over 

 1 mm. broad. Column "5 mm. long. Capsule 4 mm. long. 



A very distinct little species. 



Angraecum obanense Rendle sp. nov. Planta caule scandente 

 internodiis basibus foliorum persistentibus occultis ; foliis anguste 

 cuneato-oblongis apice inaequaliter bilobis ; racemis brevibus 

 subrigidis axillaribus (interdum geminis) basin folii penetrantibus 

 multifloris ; hracteis brevibus amplexicaulibus truncatis ; fiorihus 

 minutis ; sepaJo dorsali elliptico truncate obsolete apiculato, sepp. 

 lateralibus paulle angustioribus ellipticis ebtusis supi-a medium 

 carinatis apice incrassatis dorse sparse furfuraceis ; petalis orbi- 

 cularibus ; laheUo oblate breviter apiculato, calcare brevi inflate 

 velut evario sparse furfuracee ; pollinierum stipite singule (?) ; 

 restello lineari inflexo. (PI. 14, figs. 1,2.) 



Oban ; n. 896. 



Ste7n broken off above, 3 mm. thick, fixed by long roots which 

 pierce the leaf-sheaths ; internodes barely 1 cm. long. Leaves 7 '5-9 

 cm. long, 1"5 to nearly 2 cm. broad. Racemes about 2 cm. long. 

 Bracts barely 1 mm. long. Dorsal sepal 2" 2 x 1'35 mm.; lateral 

 sepals 2-2 x 1 • 1 mm. Petals 1 • 6 mm. long and broad ; lip spreading, 

 1-35 mm. long, 3 mm. broad ; spur 2 mm. long, 1 mm. thick. Ovary 

 with pedicel 2 • 5 mm. long. 



In habit this species recalls A. lepidotum Reichb. f., but differs 

 iu the more elongated racemes, suggesting rather those of A. 



