Schltr. and other species with short few-flowered simple 
inflorescences. So far as I am aware this is the first spe- 
cies of sect. Cultriformes recorded from the Nguru 
Mountains. 
Rhipidoglossum densiflorum Swmmerhayes sp. 
nov.; affine R. obanensi (Rendle) Summerh., a quo foliis 
apice valde inaequaliter bilobatis lobo longiore acuto lobo 
breviore fere nullo, floribus paulo majoribus, sepalis lat- 
eralibus quam intermedio longioribus angustioribusque, 
labello late orbiculari vel flabellato-orbiculari apice leviter 
exciso basi ante ostium calcaris callo transverso perhumili 
instructo satis distinguendum. 
Herba epiphytica; caulis elongatus, usque ad 40-45 
cm. longus, 2-8.5 mm. diametro, teres, superne multi- 
foliatus, inferne vaginis foliorum delapsorum partim cir- 
cumdatus, radices numerosas flexuosas ramosas laeves 
3-4 mm. diametro emittens. Folia adscendentia vel fere 
patentia, 1-2 cm. distantia; vagina inferne arcta, superne 
subdilatata, leviter compressa, valde nervosa, apice trun- 
cata, 1-2 cm. longa; lamina oblanceolata, oblongo-vel 
elliptico-lanceolata vel anguste lanceolata, apice valde 
inaequaliter bilobata, lobulo longiore leviter incurvato 
acuto 2-10 mm. longo, lobulo breviore brevissimo vel 
fere nullo, basi angustata, 4-12 cm. longa, 8-23 mm. 
lata, siccitate multinervosa, tenuiter coriacea. Inflores- 
centiae singulae vel geminae, foliis multo breviores, 1—4 
cm. longae, fere ad basin dense multiflorae, basi vaginis 
paucis ovatis obtusis instructae; rhachis teres; bracteae 
vaginantes, superne dilatatae, truncatae vel subacutae, 
vix 1 mm. longae, 1-2 mm. distantes. Fores patentes, 
albi vel pallide cremei, eos Convallariae majalis revocan- 
tes, tepalis = conniventibus; pedicellus cum ovario 2-38 
mm. longus. Sepa/um intermedium late ellipticum, apice 
obtusum vel rotundatum brevissime apiculatum, 2.4—2.8 
[ 91 ] 
