species possesses much the longest spur of any of the 
African members of the section. 
Habenaria (§. Diphyllae) decurvirostris S%- 
merhayes sp. nov.; affinis H. calvae Rolfe, a qua folio 
singulo, inflorescentia latiore et laxiore, floribus paulo 
minoribus, petali partitione antica decurvata quam posti- 
‘a fere duplo longiore, calcari apice tantum inflato, rostelli 
lobis lateralibus leviter decurvatis facile distinguenda. 
Herba terrestris, 20-80 cm. alta; tubera globosa vel 
ellipsoidea, 2 cm. longa, 1.5-2 em. diametro, breviter 
tomentosa. Folum singulum, basale, solo adpressum, 
reniformi-orbiculare, apice cuspidato-acuminatum, basi 
cordatum, +amplexicaule, 2.5-4.5 em. longum, 2-4.5 
cm. latum, carnosum, sordide viride. Seapus erectus, 
teres, cataphyllis numerosis lanceolato-linearibus acutis 
adscendentibus luteo-viridibus usque ad 2 em. longis in- 
structus; racemus 11—16 em. longus, 8-4 em. diametro, 
laxiuscule vel densiuscule multiflorus; bracteae cataphyl- 
lis similes, floribus breviores. Fores erecto-patentes, vi- 
rides ; pedicellus gracilis, 3-6 mm. longus ; ovarium leviter 
arcuatum, 8-11 mm. longum. Sepa/uwm intermedium 
erectum, ovatum, concavum, cucullato-obtusum, 8.2—-3.5 
mm. longum, circiter 2.5 mm. latum; sepala lateralia 
deflexa, oblique et late semi-obovata, acuta, 5.5 mm. 
longa, 8-3.4 mm. lata, trinervia, =revoluta: omnia sepala 
viridia. Petala bipartita, luteo-viridia; partitio postica 
erecta, lanceolato-ligulata, acuta, 3.5 mm. longa, 0.7 
mm. lata, sepalo intermedio adhaerens et cum eo cucul- 
lum latum formans; partitio antica incurvatim descen- 
dens, linearis, obtusa, crassiuscula, 5.5-6.5 mm. longa, 
0.5—0.8 mm. lata, dimidio basali labello adnata. Labellum 
trientibus duobus distalibus trilobatum, luteo-viride, de- 
pendens, subcarnosum ; lobus intermedius subspathulato- 
ligulatus, apice rotundatus vel obtusus, 4.5—-5.5 mm. 
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