280 MR. SCOTT Elliot's tropical African orchids. 



the membranous acute floral bracts, the lower of which are 10 lines 

 long. The slender pedicels (1 in.) are sharply distinguished from 

 the narrow-oblong ovaries (5 lines). The dorsal sepal is 3^ by 

 IJ lines, the lateral are nearly 4 lines long by 3 broad. The 

 posterior portions of the petals are equal in length to the dorsal 

 sepal, and ^ line broad; the anterior portion (7^ lines long) tapers 

 gradually from a base of i line broad to the pointed apex. The 

 central lip-segment is ^ in. long, the narrower lateral ones 4,^ lines. 

 The short spur (4^^ Imes) is bent suddenly upwards above the 

 middle, and has a spiral twist just above the bladder-like end. 

 The prominent upwardly curving stigmatic processes are ^ in. long. 

 Very near the Abyssinian H. Schimperiana Hochst., but dis- 

 tinguished by its very short sharply geniculate spur, shorter anterior 

 perianth-segments and lip-lobes, and broader leaves. Also recalls 

 H. anaphysema Kclib. f. in the sharply reflexed spur. 



Habenaria humilior Rchb. f. var. brevicalcarata, var. nov. 

 Calcare breviori, processubus stigmaticis vix longioribus, foliis 

 latioribus. 



Hab. Tropical East Africa, Mau Forest, Sept. 1889, F. J. 

 Jackson. 



Type in Abyssinia. 



Distinguished at once by its much shorter spur ; it has also 

 acuminate anterior petal- segments, and falcate lateral lip -segments. 

 Habenaria ruwenzoriensis, sp. nov. Caule valido folioso, 

 racemi subdensi bracteis membranaceis quam ovaria cum pedicellis 

 baud distinctis duplo brevioribus ; fioribus mediocribus, sepalo 

 dorsali cucullato ovali, lateralibus reflexis cuneato-obovatis antice 

 rotundatis, petalorum parte postica bi-evi late- vel oblongo-ligulata, 

 apice subito acuta, parte antica fequilonga angustiore plus minus 

 lanceolata subfalcata acuta ; labelli tripartiti lobo medio lineari 

 obtuso 3-nervio, lobis lateralibus omniuo minoribus, calcare fiexuoso 

 vix filiformi sub apice dilatato, quam ovarium pedicellatum breviore; 

 processubus stigmaticis porrectis tenuibus capitatis, antherse canales 

 apice incurvatas sequantibus, rostello dentiformi. 



Hab. Wimi, Ruwenzori, 7000 ft., June (rains), 1894, No. 

 7923. 



The stout fleshy stem is 80 in. high, including the raceme 

 (9 in.). A rufescent basal sheath is succeeded by a number of 

 oval-lanceolate leaf-blades (the largest 4^ in. by IJ) spreading 

 from an amplexicaul base, into which the sheath (1 in. long) 

 gradually passes. Above the middle there is a gradual transition 

 from the leaves to the lanceolate floral bracts (1 in. long in lower 

 part of raceme, shorter above). The upper part of the plant is 

 more or less pilose, especially on the upper surfaces of the bracts. 

 The elongated almost clavate ovary, with its stalk, is ascending, 

 and reaches 1| in. in length. The dorsal sepal is 3 by 1^ lines, 

 the reflexed lateral ones 4 by 3 lines; the perianth-segments ("2 hues 

 long) form a single piece at the base, the suberect posterior one is a 

 little over 1 line broad, the anterior scarcely | line. The lip is 

 5i lines long ; the median lobe is much longer and broader (| line) 

 than the two lateral. The spur is 11 lines long. The slender 



