Dendrobium.] CXLVIII. ORCHIDES. (J. D. Hooker.) 711 
white or pale buff with faint colouring on the lip; mentum usually long and fannel- 
shaped, or conical, acute, straight or incurved (short in D. albo-sanguineum) ; mid- 
lobe of lip often fimbriate on the margin or disk.—Similarly hairy sheaths occur in 
sect. Virgate and in D. nutans and a few others. 
Series II. Inflorescence lateral on the stem or pseudobulb (terminal in 
Some species of Aporum). 
. Sect. VI. AP RUM. Stems tufted, compressed, leafy. Leaves shortly ensiform 
distichous, sheaths equitant, imbricating, fleshy or coriaceous, nerveless, persistent. 
Flowers small, white or yellowish with pink markings, shortly pedicelled, solitary 
or in bracteate heads or short racemes, sometimes appearing racemose from occupying 
the leafless ends of the branches; mentum stout, as long as or longer than the short 
broad lateral sepals. 
Sect. VII. SrRoNGYLE. Stems tufted, slender, often branched, terete. Leaves 
terete, subtercte or subulate, persistent. Flowers small, white or pale, solitary or as 
if racemed on the leafless ends of the stem or branches; mentum as in Aporum.— 
This section is not very well distinguished from the preceding and following. 
Sect. VIII. Virearm. Stems tufted, elongate, slender, but hard, rigid and 
Polished, simple or branched, leafy, often swollen above the base. Leaves dist ichous, 
long, linear (shorter and oblong in D. tuberiferum & crumenatum), persistent. 
wers small or medium-sized, white or yellow with often pink or green markings, 
Solitary or few on a leaf-opposed tubercle, or appearing racemed on the leafless ends 
of the stem or branches; sheaths sometimes pubescent with black hairs; mentum 
usually long, stout, incurved ; petals and lip often very narrow. . 
Sect. IX. BuxvirronEs. Stems tufted, long or short, terete or clavate, sparingly 
eafy. Leaves oblong or lanceolate, persistent or deciduous. Flowers few, small, in 
short racemes or heads, pink or yellow, often dingy; mentum large, saccate; lip very 
short, deeply concave or urceolate, truncate or lobes short, 
Sect. X. PEDILONIUM. Sfems tufted, long, terete, simple, stout or slender, erect 
pr pendulous, leafy. Leaves distichovs, oblong or lanceolate, coriaceous or submem- 
"nous, persistent or deciduous. Flowers medium-sized, pink or yellow, rarely 
White, in short leaf-opposed often dense-fld. secund racemes, or in corymbs or tufts, 
rarely solitary ; mentum stout and often very long, equalling or longer (often much) 
than the Short triaugular sepals; lip usually very long and narrow, dawed, with 
often a small lamella, callus or spur on the claw near the base,— D. sanguinolentum 
*5 Perhaps better referred to Sect. XII. 
Sect. XL DISTICROPHYLLÆ. Stems tufted, elongate, stout or slender, leafy 
throughout, Leaves short, uniform, distichous, bases imbricating, persistent, emar- 
Sinate or 2-fid. Flowers small, usaally white or yellow, solitary or in short leaf. 
jePosed racemes; mentum stout, spur-like, as long as the lateral sepals or longer ; 
IP short, broad, sides recurved.—Habit of Appendicula. 
Sect, XIT, EvuDENDROBIUM. Stems tufted, elongate, stout or slender, clavate or 
nodose in some species. Leaves various, distichous (terminal and solitary in D. ag- 
Iregatum Only), membranous or coriaceous, persistent or deciduous. Flowers 
usually large in lateral pairs, fascicles or racemes, very rarely solitary, highly coloured 
or white.—This section is best characterized by wauting the sum of the characters of 
any of the others, ‘The species with narrow sepals, petals and a long mentum approach 
ormose and Pedilonium. 
Sect. I. Sarcoropium (see p. 710). 
*F lowers solitary. 
len| D. amplum, Lindl. in Wall. Cat. 2001; Gen. § Sp. Orchid. 74; 
eaves petioled oblong, scape long, sepals lanceolate acuminate, lip sessile 
» Side lobes short rounded, midlobe bread acute crenulate, disk 
