16 CXXXIII. ORCHIDEH (ROLFE). 
Subtribe xi. ARETHUSER. 
Lip without spur or sac, ; d ; : . 27. Pogonta. 
Lip saccate or shortly calcarate S S 3 . 28. EPIPoGUM. 
Subtribe xii. LIMODORER . : 5 -. . 29. EpIpactis. 
Subtribe xiii. HABENARIER, 
Middle lobe of the rostellum tooth-like, subulate or 
broader below, flat and distinct from the side 
lobes, or obsolete. 
Sepals subequal and more or less connivent. 
Lip ecalcarate A S 5 i : . 30. STENOGLOTTIS. 
Lip variously calcarate. 
Petals more or less exceeding the sepals. 
Lip slightly adnate to the e scape 
without sheaths . . 31. HOLOTHRIX. 
Lip deeply adnate to the column ; ; ` scape 
with numerous lanceolate sheaths . 32. DER@MERIA. 
Petals equalling, or shorter than the sepals . 33. PERISTYLUs. 
Sepals unequal, the lateral ones more or less 
spreading. 
Lip concave or subsaccate at the base : . 34. BRACHYCORYTHIS. 
Lip variously calcarate. 
Stigmas sessile or subsessile, confluent or more , 
or less distinct. 
Anther sessile : : S . . 35. PLATANTHERA. 
Anther long-stalked : 36. PODANDRIA. 
Stigmas more or less distinctly stalked, and 
very rarcly confluent. 
Anther-cells produced into long channels ; 
stigmas produced in front only . . 37. HABENARIA, 
Anther-cells obtuse in front, without chan- 
nels; stigmas produced behind into a 
pair of tooth-like processes 2 . 38. R@PEROCHARIS. 
Middle lobe of the rostellum more or less concave or 
complicate, usually broader, more or less united 
to the side lobes and galeate. 
Lip inferior (flower reversed, as is usual in the 
order). 
Stigmatic processes very long, and partly adnate 
to the stalk of the ip . : . 39. BONATEA. 
Stigmatic processes not adnate to the lip, usually 
short. 
Lip narrow, simple or with narrow lobes . 40. PLATYCORYNE. 
Lip broad, variously 3- or 4-lobed - . 41. Cynorcuis. 
Lip superior (flower not reversed) è ; . 42, AMPHORCHIS. 
Subtribe xiv. DISEÆ. 
Lip superior, 2-saccate or calcarate at the base. . 43. SaTYRIUM. 
Lip inferior, neither saccate nor calcarate. 
Petals free from the dorsal sepal . R ; . 44. Disa. 
Petals adherent to the dorsal sepals. : . 45. BROWNLEEA. 
Subtribe xv. CORYCIE® . > S S 46. DISPERIS. 
