82 REPORT ON THE 



best described as a pale-coloured form of 0. luteo purpureum, 

 having narrow yellow-fringed petals blotched with chocolate- 

 brown markings. A plant marked 0. hybrid (?) reminded one 

 of 0. Lindleyanum ( = 0. epidendroides) or of 0. Wallisii, 

 having a pale yellow starry perianth with blotches of a reddish- 

 brown colour. In Mr. Peacock's group I also noted 0. Hallii, 

 from the Lloa Valley ; 0. Hallii xanthoglossum, from Ecuador ; 

 and typical 0. luteo purpureum, from New Granada ; these, 

 together with the 0. Wilckeanum above mentioned, forming a 

 most interesting group, showing some of the most marked 

 variations of a single species under different geographical 

 conditions. 



0. hebraicum, also from Mr. Peacock, reminds one of 

 0. naevium majus in habit of growth and inflorescence, but the 

 flowers are larger, of a more creamy-yellow hue, the sepals being 

 dotted with reddish-brown in a linear manner. It is quite 

 possible that this plant represents 0. naevium majus in the 

 upland districts of Columbia, where it is found growing wild. 



0. Andersonianum is a well-known and one of the most 

 beautiful forms or varieties of what we now call 0. Alexandras 

 (Bateman), but which the late Prof. Lindley had previously named 

 0. crispum. It is rather singular that Lindley, in describing the 

 colour of the flower, says that it is yellow, so, that either he was 

 misled by the dried specimen which he had before him, or, as 

 might be quite possible, he really had a yellow-flowered variety. 

 When Weir and Blunt first found 0. Alexandras, and sent home 

 living plants, ah 1 the varieties were white, and the yellow varieties, 

 or so-called hybrids, did not appear for some years after the first 

 introduction of this now popular species. 0. Andersonianum 

 may be taken as a typical yellow 0. crispum, some of its forms 

 being suffused with pink on pale cream-coloured grounds, the 

 sepals and petals being more or less spotted with reddish-brown 

 markings. It is a native of New Granada. 0. Euckerianum, 

 another typical form of 0. crispum, is similar to 0. Ander- 

 sonianum, but the sepals and petals are copiously suffused with 

 rosy-purple or lake colouring, their margins being whitish and 

 elegantly crimped ; but there can be no doubt but that these two 

 forms are united by intermediates. 0. Ruckerianum puncta- 

 tissimum differs from the typical form in having a profusion of 

 dots instead of well-marked spots or blotches. 



Mr. Pollett's form of 0. Ruckerianum, a very beautiful one, 



