out OPHRYDEJE. 
 CLXXXVII. HABENARIA. 
Habenaria. Willd. Sp. Pl, 4,44. 
Perianthium Orchidis. Calcar elongatum. Columna libera reclinata, 
Anthera basibus loculorum solutis divergentibus canalibus stiginaticis 
adherentibus. Glandule nude. Rostellum planum, anthere adnatum. 
Processus carnosi 2 stigmatici, ultra antheram projicientes, sæpiùs ori 
calcaris adnati, formå variiit——Habitus Orchidis. 
As now limited, this extensive genus comprehends all the species of 
Ophrydez with a small rostellum, naked glands, and a long spur, provided 
they have two fleshy processes of the stigma projecting from the back of 
the mouth of the spur. I formerly intended to define the genus in an- 
other manner; buta very careful re-examination of every species to which 
I have access convinces me that these are the surest characters we can 
depend upon. 
A. EROSTRES; ovariis pedunculatis subcylindraceis, aut fusiformibus, nunquam rostratis. 
Plereque Americane. 
$ 1. Petala 2-3-fida. 
* Sepalum supremum petalis angustius. 
** Sepalum supremum petalis majus. 
a. Petalorum laciniz latitudine subequales. 
b. Petalorum lacinia anterior angustior et elongata. 
c. Petalorum lacinia anterior nana. 
§ 2. Petala indivisa.. HENIDIA. 
a. Labellum simplex, vel laciniis lateralibus minimis. 
6. Labellum trifidum, laciniis filiformibus indivisis. 
c. Labellum trifidum, laciniis lateralibus dilatatis v. fissis. _ 
B. RosTRATE; ovariis sessilibus apice angustatis sæpiùs longè rostratis.—— Omnes 
Indice. 
A. Erosrres. 
$ 1. Petala 2-3-fida. 
* Sepalum supremum petalis angustius. 
1. Hasenaria rotundifolia. 
H. folio solitario radicali subrotundo-cordato plano obtuso, racemo 3-floro : 
floribus longè pedunculatis, petalis latissimis ovatis acutis: lacinià 
anteriore subulata, labelli tripartiti laciniis subzequalibus intermedià 
latiore, calcare incurvo clavato obtuso labello paulo longiore. 
Habenaria? grandiflora. Lindl. in Wall. Cat. no. 7032. 
Hab. in India orientali. (hab. s. sp. ex herb. Anglo-Ind.) 
Semipedalis. Flores mediocres, quapropter nomen grandifore re) 
Sepala explanata, subequalia, ovata, acuta. Omnes partes glabre. 
eci. 
** Sepalum supremum petalis majus. 
a. Petalorum laciniz latitudine subzequales. 
2. Hasenaria abortiens. 
H. foliis lanceolatis erectis, racemo elongato multifloro: bracteis foliosis 
florum fer? longitudine, sepalo supremo nano, petalis minimis Ruin 
anteriore latiore bifida, labelli tripartiti lacinià intermediA lineari obtu 
lateralibus dimidio brevioribus subulatis, calcare clavato acuminato 
labello longiore, basibus antherze elongatis. 
Hab. in Peruvia, Henke. (exam. s. sp. in herb. Martii.) : 
Radices tomentose, tuberculo in exemplo nullo. Caulis bipedalis dens 
