340 83. OEOHIDACE^. 



close together. Fl. very small but witli a very long slender 

 tube often 2 or 3 in. long. The spath in the axil of a leaflike 

 bract placed within the whorl of leaves. Sep. tinged with green 

 and pink externally, incurved, hooded. Pet. flat, transparent, 

 recurved, oblong. Filaments at flrat curved outwards, their 

 points placed under the hood of the sepals, afterwards erect, 

 linear, blunt. Anth. 0. Stigmas recurved, linear, or deeply 

 bifid. Sep. pet. and stigmas of about equal length. Style ad- 

 nate on 3 sides to the tube. — In water. Probably introduced 

 from America. Oanals and rivers. P. VII. — ^IX. E. S. I. 



Order LXXXIII. OECHIDACE^. 



Sep. 3, usually coloured. Pet. 3, 2 above, 1 below (lip) fre- 

 quently lobed and spurred and unlike the others. Stam. 3, united 

 in a central column, 2 lateral abortive, or (in Cypripedium) the 

 middle one abortive. Pollen powdery or cohering in masses. 

 Ovary 1-celled, inferior, with 3 parietal placentas. Style form- 

 ing part of the column with the stamens ; stigma a viscid space 

 in fi-ont of the column. Gaps. 3-valved. Seeds very many, 

 minute. Testa loose, netted. — Eaphidiferous. 



Tribe I. OPHRYJUINE^. Anther wholly adnate to the co- 

 lumn. Pollen-masses in divisible lobes which are indefinite 

 in number and waxy, stalked. — Root with 2 fleshy entire or 

 palmate hnohs helow tliejlhres. 



* Anther-celts with a prolongation of the stigma hetiveen their bases. 



1. Oechis. Perianth ringent, hooded. Lip 3 -lobed, spurred. 

 Glands of the stalks of the pollen-masses in a common pouch. 



2. Gymnadbnia. Glands of the pollen-masses without a 

 pouch. Otherwise like Orchis. 



3. AcEHAS. Lip without a spur. Otherwise like Orchis. 

 ** A plate in front of the glands of the pollen-masses. 



4. Neotinea. Perianth ringent, hooded. Lip 3-lobed, 

 spurred. Glands of the pollen-masses in separate hollows 

 behind the broad recurved rostellum, which is bounded 

 laterally by 2 semicylindrical ascending processes diver- 

 ging from its base. 



*** No prolongation of the stigma between the anther-cells, nor 

 plate in front of them. 



5. Habbnahia. Perianth ringent, hooded. Lip 3-lobed or 

 entire, spurred. Glands of pollen-masses naked. 



