180 Proceedings. 



"Thirteen genera. One, Herminium, common to this 

 country and the Cape ; another, Habenaria, ubiquitous in 

 every part of the known world, a few, e.g., Stencglottis, 

 Bartholina, one of the most marvellous flowers of the tribe 

 \B. pectinata R. Br.] of which I exhibit a specimen, con- 

 spicuous for its lacerated and fringed labellum, Huttoima 

 and Holothrix, being confined to the Cape, whilst Diplomeris 

 is only known in the Himalayas. 

 (e) Disecz. 



" Fifteen genera (eleven according to H. Bolus), nearly 

 restricted to south and sub-tropical Africa, with Madagascar. 

 \d) Coryciece. 



" Four genera. Three confined to South Africa ; the fourth 

 (Disperis) having its headquarters in the same region, is 

 more extended in its range, a few being found in Mauritius 

 and the East Indies. 



" The third sub-tribe, the Disece, have alone to be consi- 

 dered at present. Here the anther is not erect, as in the 

 two first divisions, Serapiecz and Habenarie(E,\>nX. is inclined, 

 or more rarely sub-erect, usually being reflexed towards the 

 back of the column. Of the fifteen genera, by far the 

 largest is Disa (Bergius). This genus, as I have already 

 said, is entirely confined to the southern portion of Africa 

 (and I believe one species has been lately described from 

 Madagascar), and contains one hundred species. Mr. H. 

 Bolus has studied the various forms in situ more advan- 

 tageously than any other botanist, and he is inclined now to 

 merge several genera admitted by Bentham and Hooker, 

 and separated for some slight floral differences. Monadenia 

 (Lindley), ScJiizodiwn (Lindley), Hersc/ielia(ib.), are by him 

 treated as sub-genera only. As it stands, the genus is 

 extremely varied in appearance, and is subdivided by Mr. 

 Bolus into eleven groups. Some species, e.g., D. cJirysos- 

 tachya (Lindley), D. polygonoides (Lindley), are densely 

 spiked with small flowers ; others, e.g., D. rosea (Lindley), 



