oblanceolate, often much larger than those of . pallid- 
iflorum, and with sometimes very elongate petioles. The 
flowers, however, are said to be light green and orange, 
similar to those of Maavtllaria pallidifilora and are but 
slightly larger in size. 
It seems reasonable to conclude, theretore, that all of 
these collections, including some recorded from Vene- 
zuela and Ecuador, belong to a single variable concept. 
Xylobium squalens (Lind/.) Lindley in Bot. Reg. 
11 (1825) sub t. 897——-Cogniaux in Martius FI. Bras. 3, 
pt. 5 (1902) 468. 
Dendrobium squalens Vindley in Bot. Reg. 9 (1823) 
te Jou, 
Mawillaria squalens Hooker in Bot. Mag. 56 (1829) 
t, 2955. 
Dendrobium carnosum Pres| Symb. Bot. (1832) 35,t. 24. 
Cyrtopera scabrilinguis Lindley Gen. & Sp. Orch. PI. 
(1883) 189. 
Mawillaria supina Poeppig & Endlicher Nov. Gen. ac 
Sp. 1 (1886) 89, t. 67. 
Nylobium Houtter Makoy ex Mutel Mém. sur plus. 
Orch. 1 (1840) 16. 
Mawillaria seabritinguis Lindley in Bot. Reg. 80 (1844) 
NSC 07 1 
Xylobium scabritingue Schlechter in Orchis 7 (19138) 
2s 
Xylobium supinum Schlechter in Orchis 7 (1918) 24. 
Yylobium carnosum Schlechter in Fedde Repert. Beih. 
9 (1921) 160. 
KXxeept for Vylobium earnosum (based on Dendrobium 
carnosum) and X. scabrilingue (based on Cyrtopera scab- 
rilinguis), all of the above concepts have previously been 
reduced to the synonymy of X. squalens. 
The concept Dendrobium carnosum, which was de- 
scribed trom material lacking a pseudobulb, appears to 
differ from MNylobium squalens only in having a longer 
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