The following are the species of Spiranthes at present 
known; of which M. Richard mentions only six : 
1, S.autumnalis. Rich. (v.v. sp.) 
2. S. estivalis. Rich. (v. v. sp.) 
3. S. australis. Nob. (v.s.sp.) Neottia australis. Brown. 
4. S. pudica. Lindl. (y.v. c.ets.sp.) This is quite distinct from 8. au- 
stralis, with which it has been confounded in fol. 602 of this work. 
We are well acquainted with both species. Of S. pudica we have 
specimens from Dayuria, collected by Adams. 
5. S. flexuosa. Nob. (v.s.sp.) Neottia flexuosa. Smith in Rees. 
6. S. parviflora. Nob. (v.s.sp.) Neottia parviflora. Smith in Rees. 
7. S. africana. Nob. foliis ligulatis oblongis radicalibus humifusis uninervi- 
bus, scapo vaginato glabro, spica secunda labelloque 3-lobo acuto 
plano saccato glaberrimis.—Hab. in insulis Africe australis. Flores 
virides. (v. fig.) -Satyrium spirale. Pet. Th. hist. orch, afr. t. 9. 
8. 8. congesta. Nob. foliis lanceolatis suberectis, scapo glabro vaginis ob- 
tusis, spica oblonga congesta subspirali puberula, sepalis obtusis, la- 
bello integerrimo.— Hab. in Sibiria. Flores rosei? (v. s. sp. comm. 
cel. Prescot.) 
9. S. tortilis. Rich. (v.s. sp.) Neottia tortilis. Wiild. 
10. S.cernua. ich. (v. v. c.) 
11. S.clata. Rich. (v.yv.c.) Neottia elata. Bot. mag. 2026. 
12. S. picta. Nob. (v.v.c.) Neottia picta. Bot. mag. 1562. _ 
13. S. bicolor. Nob. (v.v.c.) Neottia bicolor. Supra fol. 794; where 
the leaves are inaccurately represented as whole-coloured. They are 
variegated with lighter and darker green, like those of §. picta. 
14, S. diuretica. Nob. Neottia diuretica. Willd. Spiranthes Nuil. Rich. 
15. S. quadridentata. Nob. Neottia 4-dentata. Willd. 
16. S. strateumatica. Nob.  Orchis strateumatica. Willd. 
Many of the above are nearly related to each other in 
characters; but they are all, in our judgment, truly distinct. 
