104 SOUTH NIGERIAN PLANTS 
Near P. polychaete Krünzl, but & 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 foliato ; foliis saepe 3 suberectis e 
vagina basi anguste tubuliforme linearibus, apice mucronatis ; 
racemo brevi paucifloro valde supra folia eminente; bracteis 
approximatis concavis e basi lata triangulari-ovatis acutis; 
flore (unus solum exstat) minuto luteo (?) breviter pedicellato ; 
sepalo dorsali concavo elliptico acuto, sepp. lateralibus transverse 
extensis oblique ovatis acutis carinulatis, basi in mentum latum 
rhomboideum obtusum productis; petalis parvulis late ellipticis ; 
labello indiviso e basi attenuata rhomboideo obtuso; columna 
brevi crassa late alata; anthera superne rotundata antrorsum 
rostrata ; capsula ellipsoidea. (Pl. 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. 
Raceme 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, 29:8 mm. broad; chin equal to 
dorsal sepal. Petal -75 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 ; bracteis brevibus amplexicaulibus truncatis ; floribus 
minutis ; sepalo dorsali elliptico truncato obsolete apiculato, sepp. 
lateralibus paullo angustioribus ellipticis obtusis supra medium 
carinatis apice incrassatis dorso sparse furfuraceis ; petalis orbi- 
cularibus ; labello oblato breviter apieulato, caleare brevi inflato 
velut ovario sparse furfuraceo ; polliniorum stipite singulo (7); 
rostello lineari inflexo. (Pl. 14, figs. 1, 2.) : 
Oban; n. 896. SA 
Stem broken off above, 3 mm. thick, fixed by long roots which 
pierce the leaf-sheaths ; internodes barely 1 cm. long. Leaves 7:5-9 
em. long, 1°5 to nearly 2 cm. broad. Racemes about 2 cm. long. 
Bracts barely 1 mm. long. Dorsal sepal 9:2 x 1:85 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 
in the more elongated racemes, suggesting rather those of A. 
