TAB. 5. 



Tribe Vande.-e. 



Sub-tribe Sarcanthe.*:. 



Genus Mystacidium. 



Mystacidium Millari, Bolus, in Trans. South African Philosoph. 

 Soc, vol. xvi., PL 2, p. 147. — Kpiphyta caulescens g-labra ; radices 

 aerales 0-23 cm. crassaj ; caulis validus, 0-4-0-5 cm. crassus ; 

 tolia 2-3, pleraque apice caulis conferta, erecto-patentia lig-ulata 

 subundulata inaiqualiter biloba, lobis ang-ustatis subobtusis, medio 

 nervo depresso percursa, coriacea, 8*5 cm. longa, 1-4-1 -6 cm. lata ; 

 racemi squarrosi suberecti rigidi 7-lOflori, 2-4 cm. longi ; flores 

 plerique erecti albi ; pedicelli cum ovario 0-8-0-9 cm. long-i ; sepala 

 lateralia patentia oblongo-oblanceolata subacuta, 0-6 cm. longa, 

 parte latiore 0*22 cm. lata ; sepalum impar erectum oblongum 

 obtusissimum subconcavum basi dente in utroque margine auctum, 

 0-6 cm. longum, 0-45 cm. latum ; petala erecto-patentia, oblique 

 ovata subacuta, sepalis paullo breviora, 0-32 cm. lata ; labelli 

 lamina ovata obtusa concava, apice decurva, petalis aequilonga, 

 calcare basi inflata, deinde cylindrico incurvo, 2 cm. lonp-o : 

 columna decurva oblonga vel subrhomboidea infra medium dilatata ; 

 rostellum exappendiculatum ; pollinia lenticularia, stipitibus fili- 

 formibus, glandulis ovatis. {Ex exempli, viventibiis.) 



Hab : South-eastern Region ; Natal : near Durban, on trees, 

 alt. 150 meters, fl. Jan., A. D. Millar (Natal Gov. Herb., No. 

 8437 !) 



Plate 5. Fig. ] , flower, front view ; 2, side sepal ; 3, odd 

 sepal ; 4, one of the petals ; 5, lip, back view ; 6, ditto, side view ; 

 7, column, side view ; 8, ditto, front view ; 9, ditto, with the 

 pollinarium in situ ; 10, pollinarium,— all variously magnified. 



A glabrous caulescent epiphyte ; roots 0-23 cm. in diam ; 

 stem stout, 0-4-0-5 cm. in diam. ; leaves 2-3, mostly crowded 

 at the apex of the stem, erect-spreading ligulate somewhat 

 undulate unequally bilobed, the lobes somewhat obtuse, the 

 medial nerve depressed, coriaceous, 8-5 cm. long, 1-4-1 -6 cm. 

 wide ; racemes horizontally spreading or somewhat ascending, rio-id 

 7-lOflowered, 2-4 cm. long ; flowers usually erect white ; pedicels 



