tive. On the other hand, the side lobes of the lip are quite 
entire and in this respect differ from all other species of 
the section. Furthermore, the stigmas, instead of being 
adnate to the lower side of the rostellar arms, are quite 
free from the base and in general structure resemble these 
organs in other sections of the genus. The anther con- 
nective, though very broad, is comparatively tall, agree- 
ing in this feature with Hi. egregia Summerh., but the 
loculi are almost horizontal in position. 
It is evident that in #7. falciloba we have a very aber- 
rant species which may eventually have to be placed in 
a distinct section of the genus. 
Habenaria (§ Diphyllae) Keayi Summerhayes sp. 
nov. affinis H. pilosae Schltr., a qua statura majore, folio 
majore ovato vel late ovato apice acutiore, inflorescentia 
13-30-flora, petali partitione postica prope basin dente 
instructa, labelli caleari breviore = recurvato, anthera 
distincte apiculata, staminodiis majoribus, brachiis stig- 
matiferis lateraliter compressis satis distincta. 
Herba terrestris, 40-50 cm. alta; tubera ellipsoidea 
vel cylindrico-ellipsoidea, 1.5-4 em. longa, 5-15 mm. 
diametro, breviter tomentosa; radices flexuosae, 1.5-2 
mm. diametro, tomentosae. F’olium singulum vel rarius 
unum multo minus additum, basale, humistratum, ova- 
tum, vel late ovatum, leviter angulatum, apice acutum, 
basi cordatum += amplexicaule, 8.5—-9.5 cm. longum, 6.5— 
11 cm. latum, supra pilis longiusculis albis sparse indu- 
tum, subtus glabrum, marginibus dense ciliatis, pallide 
viride fusco-viridi-lineatum. Scapus erectus, teres, basi 
usque ad 4 mm. diametro, cataphyllis numerosis lanceo- 
latis vel lineari-lanceolatis acuminatis + adpressis infirma 
rarius foliacea lanceolata usque ad 8 cm. longa instructus, 
pilis debilibus albidis = dense indutus; racemus 12-19 
cm. longus, 3-4 cm. diametro, laxiuscule 13—80-florus: 
Co17 
