21 



If it should prove a distinct species, there seems no ob- 

 jection to the name of I. Schiedeana, as the plant so named 

 by Professor Zuccarini had been previously called I. Purga by 

 YVenderoth ; a name which is preserved by Schlechtendahl, 

 and which is upon the whole the most convenient to adopt, 

 on account of that plant producing one of the kinds of Jalap 

 of commerce. 



23. PHILADELPHUS Gordonianus. 



P. Gordonianus; foliis ovatis alte serratis pilosis, subtus ramisque villosiusculis, 

 floribus congestis 7-9, fructibus fere superis. 



This is a very distinct species, and one of great beauty, 

 sent from North-West America by Mr. Douglas, marked 

 as a plant forming underwood along the banks of the Co- 

 lumbia River. It grows from eight to ten feet high, pro- 

 ducing numerous small slender side shoots, which give it 

 rather a pendulous appearance. It differs from all the others 

 in its small deeply serrated leaves, flowers growing in close 

 clusters, broad reflexed calyx, and nearly superior fruit. It 

 is the latest species that flowers. I have named it after Mr. 

 Gordon who first called my attention to its peculiarities, 

 and who has carefully studied this ornamental genus. 



24. BOLBOPHYLLUM setigerum. 



B. setigerum ; pseudobulbis ovatis monophyllis, foliis ovalibus acutis scapo 

 erecto radicali spicaque pendula multo brevioribus, rachi filiformi, sepalis 

 ovatis acutis erectis, petalis setaceis patentissimis basi extus tuberculatis, 

 labello oblongo recurvo medio incrassato et elevato apice tridentato, co- 

 lumna bicorni, anthera. pedicellata. 



A very curious little epiphyte, obtained by Messrs. 

 Loddiges from Demerara ; the flowers are small and dull 

 purple, upon a light green ground. One very remarkable 

 circumstance in its structure is the presence of a minute 

 tubercle at the base of the petals on the outside, which in 

 another species, B. bracteo latum, from the same country, is in 

 the form of a distinct scale. 



