Habenaria (§. Trachypetalae) pubipetala Swm- 
merhayes sp. nov.; aftinis H. trachypetalae Kraenzlin, a 
qua habitu laxiore, racemo laxifloro, floribus duplo minor- 
ibus, petalis ligulatis sursum paulo dilatatis apice breviter 
bilobatis, calcari spiraliter torto, antherae canalibus duplo 
brevioribus, rostelli lobo intermedio angustiore differt. 
Herba terrestris, 40-70 cm. alta; caulis basi radices 
flexuosas villosulas emittens, erectus, teres, laxe foliatus, 
usque ad 7 mm. diametro. Folia 7-9, 1-2 infima ad vagi- 
nas redacta, intermedia elliptico-lanceolata vel elliptico- 
oblanceolata, valde acuta, tota usque ad 22 em. longa et 4 
cm. lata, superiora sensim decrescentia in bracteas abeun- 
tia. Racemus laxe multiflorus, 15-25 cm. longus, circiter 
5 cm. diametro; bracteae lanceolatae, acuminatae, usque 
ad 8 cm. longae et 5 mm. latae, inferiores pedicellum et 
ovarium aequantes. JVores fere patentes, albi (fide col- 
lect.); pedicellus gracilis, 8-10 mm. longus; ovarium 
leviter arcuatum, circiter 1 cm. longum. Sepalwm inter- 
medium valde concavum, latissime ovatum, apice obtuse 
acuminatum, + reflexum, 3.5-4.5 mm. longum, explana- 
tum circiter 4.5 mm. latum; sepala lateralia deflexa, ob- 
lique semi-orbicularia, basi angustata, valde recurvata, 
apiculata, 10-11 mm. longa, 38.5-4 mm. lata, intus 
papillato-puberula. Petala erecta, curvatim + ligulata, 
dimidio apicali+irregulariter bilobata vel margine pos- 
tica unidentata, 8 mm. longa, 8 mm. lata, dense papillato- 
pubescentia et ciliata, margine postica inferne cum sepalo 
intermedio conglutinata cucullum latum sed haud_ pro- 
fundum formantia. Labellum dependens, + deflexum, 
duobus trientibus apicalibus trifidum; unguis ligulatus, 
sursum sensim dilatatus, lateribus reflexis, 5-7.5 mm. 
longus, marginibus ciliolatis; lobus intermedius late lin- 
earis, obtusus, rectus, 10-12 mm. longus, 0.6-0.9 mm. 
latus; lobi laterales apice spiraliter recurvati, lineares, 
circiter 17 mm. longi, 0.5—0.6 mm. lati; calear deflexum, 
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