APPENDIX. 
ORCHIDEARUM SCELETOS. 
1. §. Neottiee. Pollen simplex v. é granulis laxé coherentibus. 
Tribus I. Neorrrex. Anthéra stigmate parallela erecta. 
Tribus IT. Areruusex. Anthera terminalis opercularis. 
2. §. Orchidee. Pollen in granulis demtm cereaceis numero indefinitis coherens. 
Tribus 11. Gasrropiem. Anthera terminalis opercularis. 
Tribus [V. Opurypex. Anthera terminalis erecta v. inversa. Pollinia caudiculata. 
3. §. Epidendree. Pollen in granis demtm cereaceis numero definitis coherens. 
Tribus V. Vanpea. Pollinia caudicula diaphana vy. glandula stigmati affixa. 
Tribus VI. Epipenpres. Pollinia caudiculis filiformibus pulvereis replicatis stigmati affixa. 
Tribus VIT. Maraxipex. Pollinia libera; nunc ad apicem materie viscida v. pulvered aut granulosa 
coherentia. 
4. §. Cypripediee. Anthere laterales fertiles: intermedia sterili petaloidea. 
Tribus VIII. Cyprirepiem. 
Tribus 1. Nreorries. 
- (Orchidearum Sect. 2. Brown in Hort. Kew. 5.197.) 
Pelexia, Poiteau. 
Goodyera, R. Br. 
. Physurus, Rich. 
*Hemaria (Goodyera discolor, Ker.). 
Thelymitra, Forsé. 
6. Diuris, Smith. 
. Epiblema, &. Br. 
. Cryptostylis, #R. Br. 
Orthoceras, /?. Br. 
. Prasophyllum, R. Br. 
. Cranichis, Swartz. 
- *Chlorea (Kpipactis &c. Gavilu, Feuillée). 
. Ponthieva, #. Br. 
. Genoplesium, &. Br. 
. Neottia, Z. 
. Listera, A. Br. 
. Spiranthes, ich. 
. *Zeuxina. (Spiranthoidea capensis labello cum co- 
lumnd connato.) 
. Stenorhynchus, Rich. 
. Calochilus, R. Br. 
. *Synassa. (Peruviana in herbario Lambertiano.) 
Oxs. Genera distribuenda secundum structuram labelli et 
columne; Arethuseis affinia per Synassam, Epidendreis per 
Chloream, Gastrodieis per Cranichin ?, Malaxideis per Liste- 
ram et Prasophyllum. 
Oss. Affinitas Orvrnis summa cum Scitamineis per Neottieas ; inferior magisque obscura cum Asphodeleis 
per Thelymitram et Junceis per Malaxideas. 
Tribus 1. Arernusen. 
(Orchidearum Sect. 3. Brown in Hort. Kew. 1. c.) 
22. Arethusa, Swartz. 
23. Limodorum, Tourn. 
24. Calopogon, R. Br. 
25. Pogonia, Juss. 
26. Eriochilus, R. Br. 
27. Pterostylis, R. Br. 
28. Glossodia, ?. Br. 
29. Lyperanthus, R. Br. 
30. Caladenia, R. Br. 
31. Chiloglottis, R. Br. 
32. Cyrtostylis, R. Br. 
33. Corysanthes, R. Br. 
34. Caleana, R. Br. 
35. Microtis, R. Br. 
36. Epipactis, Swartz. 
37. Corallorhiza, Haller. 
Oss. Tribus per Limodorum transit in Ophrydeas, per Are- 
thusam in Neottieas, per Corallorhizam, cujus pollen semper 
vidi in granulis subsimplicibus separabile, in Vandeas et Ma- 
laxideas. 
Tribus 1. Gastrroviex. 
(Orchidearum Sect. 4. Brown Prodrom. fl. N. Holl. 
p. 330.) 
38. Gastrodia, R. Br. 
39. Epipogium, FR, Br. 
