ORCHIDACEAE 



171 



referred to Angraecum terrestre primum purpureum (Spatho- 

 glottis plicata BL), which was not figured; and t. 50, f. 3, to 

 Angraecum terrestre alterum (Phajus amboinensis BL), with 

 which t. 52, /. 1, doubtless belongs. Linnaeus and Blume did 

 not notice these errors, and therefore the two artificial species 

 Epidendrum terrestre Linn, and Phajus rumphii Blume, both 

 composed of the characteristics of the two species mentioned 

 above, originate from this confusion. Linnaeus's original de- 

 scription of Epidendrum terrestre, which was not available in 

 Buitenzorg, was copied and sent to me by Mr. Merrill. It is 

 as follows : 



Epidendrum terrestre. E. fol. radicalibus lanceolatis nervosis membra- 

 naceis, scapo vaginato, petalis oblongis, nectario cymbiformi bifido. Rumph. 

 amb. 6, t. 52, f. 1 [Linnaeus Syst. ed 10 (1759) 1246]. 



Apart from the characteristics Angraecum terrestre primum 

 purpureum Rumph. and Angraecum terrestre alterum Rumph. 

 have in common, that is "foliis lanceolatis nervosis membra- 

 naceis, scapo vaginato," the "folia radicalia" occur only in 

 Spatho glottis, while in Angraecum terrestre alterum Rumph. 

 the leaves are placed on an elongated erect stem. The nectary 

 (lip) is cymbiform only in Angraecum terestre alterum Rumph. 

 (Herb. Amb. 6: 114), and bifid only in Angraecum terrestre 

 primum purpureum Rumph. (Herb. Amb. 6: 112). 



Linnaeus, Sp. PL ed. 2 (1763) 1352, described Epidendrum 

 tuberosum as follows: 



Epidendrum foliis lato-lanceolatis nervosis membranaceis bulbo innatis, 

 scapo vaginato, nectario cymbiformi bifido. 



Helleborine purpurea, tuberosa radice. Plum. spec. 9. ic. 186. f. 2. 

 Angraecum terrestre primum. Rumph. amb. 6. p. 112 t. 52. f. 1. 

 Habitat in Indiis. 



This too is a species of doubtful status, but I suppose that it 

 has the same value as Epidendrum terrestre Linn. It is cer- 

 tainly not Helleborine purpurea, tuberosa radice Plum., for 

 Plumier's species does not have a bifid nectary, nor can it be 

 Angraecum terrestre primum Rumph., because the nectary of 

 Rumphius's species is not cymbiform. Further it cannot be 

 Angraecum terrestre alterum Rumph. as this has no bulbs and 

 the nectary is not bifid. 



PHAJUS GRATUS Blume Mus. Bot. 2 (1856) 181. 

 Limatodes grata Miq. Fl. Ind. Bat. 3 (1855) 672. 



Angraecum terrestre primum album Rumph. Herb. Amb. 6: 113, 

 t 50, f. 3. 



This species is unknown to me. From Rumphius's description 



