Deudrobium.'} CXLVIII. ORCHIDE^E. (J. D. Hooker.) 711 



white or pale buff with faint colouring on the lip ; mentum usually long and funnel- 

 shaped, or conical, acute, straight or incurved (short in D. albo-sanguinewn) ; mid- 

 lobe of lip often fimbriate on the margin or disk. Similarly hairy sheaths occur in 

 sect. Vinjatce 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 BUM. Stems tufted, compressed, leafy. Leaves shortly ensiform 

 distichous, sheaths equitant, imbricating, fleshy or coriaceous, nerveless, persistent. 

 Floivers 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 ; meutuin stout, as long as or longer than the short 

 broad lateral sepals. 



Sect. VII. STKOKGYLE. Stems tufted, slender, often branched, terete. Leaves 

 terete, subterete 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. $3 



Sect. VIII. VIBQATJE. Stems tufted, elongate, slender, but hard, rigid and 

 polished, simple or branched, leafy, often swollen above the base. Leaves distichous, 

 long, linear (shorter and oblong in D. tuberiferum & crumenatum), persistent. 

 Flowers 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. BKEVIFLORES. Stems tufted, long or short, tereteorclavate, sparingly 

 leafy. Leaves oblong or lanceolate, persistent or deciduous. Flowers few, small, iu 

 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. PFDILONITJM. Stetns tufted, long., terete, simple, stout or slender, erect 

 or pendulous, leafy. Leaves distichous, oblong or lanceolate, coriaceous or submem- 

 branous, persistent or deciduous. Floicers 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 triangular sepals; lip usually very long and narrow, clawed, with 

 often a small lamella, callus or spur on the claw near the base. D. sanguinolentum 

 is perhaps better referred to Sect. XII. 



Sect. XI. DISTICH OPHYLLJB. Stems tufted, elongate, stout or slender, leafy 

 throughout. Leaves short, uniform, distichous, bases imbricating, persistent, emar- 

 ginate or 2-fid. Flowers small, usually white or yellow, solitary or in short leaf, 

 opposed racemes ;' mentum stout, spur-like, as Ipng as the lateral sepals or longer ; 

 lip short, broad, sides recurved. Habit of Appendicula. 



Sect. XII. EUDENDROBITTM. Stems tufted, elongate, stout or slender, clavate or 

 nodose in some species. Leaves various, distichous (terminal and solitary in D. ag~ 

 gregatum 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 wanting the sum of the characters of 

 any of the others. The species with narrow sepals, petals and a long mentum approach 

 Formosa and Pedilonium. 



Sect. I. SABCOPODIUM (see p. 710). 

 * Flowers solitary. 



L D. amplum, Lindl. in Wall. Cat. 2001; Gen. ty Sp. Orchid. 74; 

 leaves petioled oblong, scape long, sepals lanceolate acuminate, lip sessile 

 3 lobe d, side lobes short, rounded, midlobe broad acute crenulate, disk 



