164 cxxxiii. ORCHiDE^ (rolfe). [Listrostachys. 



4-5 lin. long. Column very stout, | lin. long; rostellum triangular; 

 pollinia with 2 slender stipites, sometimes slightly adhering at the 

 broader apex ; gland oblong. — Angrcrcum vesicatum, Lindl. in Bot. Reg. 

 184;), Misc. G; Journ. Linn. Soc. vi. lo4; Reichb. f. in Walp. Ann. vi. 

 905. 



Upper Guinea. X'&\\iint\, Loddiges ! Gold Coast : cultivated specimens, ^w?? .' 

 Sander ! Lower Niger : Asaba, Barter^ 1839 ! Caraeroons : Yaunde, Zenker, 610 ! 

 Fernando Po, Mann, 646 ! 



36. L. fragrantissima, Reichb. f. in Flora, 1805, 180. Leaves 

 ensiform-falcate, very coriaceous, 6-11 in. long, 8-12 lin. broad; apex 

 oblique, very obscurely bilobed. Racemes elongate, rather stout, about 

 1 ft. long, many-flowered. Bracts very shortly triangular, obtuse, con- 

 fluent at the sides into a ring. Pedicels 1 h lin. long. Flowers opposite. 

 Sepals ovate-lanceolate, very acuminate; dorsal 5 lin. long; lateral 

 6 lin. long. Petals slightly shorter than the dorsal sepal. Lip broadly 

 pandurate-ovate ' or nearly quadrate, strongly apiculate, crenulate, 

 ;^J-4 lin. long; spur 5 lin. long, base slender, apex suddenly and 

 obliquely inflated, broad, compressed, half as broad as long. Column 

 stout, l.V lin. long; rostellum subulate, short ; pollinia with 2 slender 

 stipites and a rounded gland. 



Iio^^er Guinea. Angola : Pungo Andongo ; rocks of Pedra Cabondo, 3400 ft., 

 Welwitsch, 701 ! 702 ! 



According to Welwitsch, it hangs from moss- and lichen-covered rocks, and from 

 branches at the foot of rocks, and is associated with Rhipsalis and Sarcoafemma. 



87. L. Welwitschii, Ueichh. f. in Flora, 18(;5, 190. Stems 

 woody. Leaves closely imbricate, erect, rigid, conduplicate, shortly 

 and subequally bilobed, 4-6 in. long. Racemes stout, elongate, 

 pendulous, many-flowered, 0-10 in. long. Bracts opposite, broadly 

 ovate-orbicular, very obtuse, 1-1 J lin. long; sheaths at the base of the 

 racemes longer and more ochreate than the bracts. Pedicels li-2 lin. 

 long. Flowers opposite. Sepals oblong-lanceolate, subacuminate, 

 acutely keeled near the apex, 6-7 lin. long. Petals very similar to the 

 sepals, but less acuminate, and not keeled, 5-6 lin. long. Lip broadly 

 pandurate-ovate, retuse, with a carinate apiculus in the angle, 

 denticulate, 5 lin. long and nearly as broad ; spur clavate, 5 lin. long. 

 Column stout, 1^ lin. long; rostellum subulate, shortly bifid ; pollinia 

 with a pair of slender, curved stipites and a rounded gland. 



IiOisrer Guinea. Angola : Pungo Andongo, frequent on rocks, Wehvltscli, 703 ! 



The leaves above described are attached to the specimen in the British Museum. 

 Other leaves mixed with the specimens are very different, and appear to belong to 

 L. fragrant issima, Reichb. f. 



38. L. Kirkii, Rolfe. Stem stout, pendulous. Leaves linear- 

 oblong, obliquely subobtuse, somewhat falcate, 6-14 in. long, 1-1 J in. 

 broad. Scapes slender, 1-1^^ ft. long, lax, many-flowered. Bracts 

 opposite, united in pairs into a broad ring, subobtuse, \-\ lin. long. 

 Pedicels 2 lin. long. Sepals and petals ovate-lanceolate, acute, 3 lin. 



