throe inches in dameter. It is very near my D. veratrifolium, 

 but differs in having much shorter petals and a very acute lip. 



5. D. antennatum (Lindl. 1 c); foliis lanceolatis carnosis oblique emarginatis 



racenio oppositifolio brevioribus, sepalis acuminatis, petalis linearibus 

 duplo longioribus reflexis, labello trilobo venis 5 elevatis rectis per axiu; 

 lobo medio ovato acuto piano 3-costato. 



Also among Mr. Hind's Nevv Guinea collections. It is a 

 most curious thing, with flowers having their long horn-like 

 petals directed backwards, and their sepals forwards. The 

 petals are two inches long, and scarcely half a line wide. The 

 leaves are succulent, brittle, and veinless when fresh. 



6. D. undidatnm (R. Brown Prodr. 332. L. no. 62. D. discolor, Lindl. in 



Bot. Reg. 1841, t. 38.) ; foliis ovato-oblongis emarginatis, racemis lon- 

 gissimis, sepalis petalisque undulatis, labelli trilobi lobis acutis interme- 

 dio lanceolato, lineis quinque elevatis intermedia apice flexuosa. 



A tropical New Holland species, with singular dingy yel- 

 low-brown flowers, of little beauty. It has also been found 

 in Java. 



7. ? D. affine (Onycbium affine, Decaisne herb, timor. 3/.) ; "foliis lineari-ob- 



longis acutiusculis coriaceis, peduuculo foliis triplo longiore oppositi- 

 folio ? laxifloro, floribus spicatis ; periantbio erecto, scgmentis exterio- 

 ribus lineari-lanceolatis acutis, interioribus subobovatis rotundatis mucro- 

 nulatis ; labelli unguiculati lobis 3, medio lineari-lanceolato, lateralibus 

 subrotundis." 



As M. Decaisne compares this with D. Mirbelianum, it 

 probably belongs to the present section, notwithstanding that 

 he conjectured the stem to be bulbous. The petals are said 

 to be obovate and mucronate. It is a native of Timor, with 

 acute linear-lanceolate leaves. 



