296 MR. SCOTT Elliot's tropical aprican orchids. 



euntibus ; spica cylindrica densa bracteosa, bracteis reflexis quam 

 flores longioribus ; fioribus iuter minores, perianthii segmentis 

 basi in tubum breve connatis, sepalis liispidulis, lateralibus 

 majoribus cuiieatis vel oblongo-cuneatis, dovsali liueari-oblanceo- 

 lato, petalis glabris ligulatis ^quilongo ; labello postico cucullato, 

 dorso carinato, apice obtuse triangulo retlexo, calcaribus tenuibus 

 acutis, ovarium pauUo excedentibus ; columna tenui tereti, stig- 

 mate bilabiato, lobis crassis late rotuudatis, rostelli lobo medio 

 orbiculari, lateralibus parvis dentiformibus. 



Hab. Ruwenzori. Marshy place, Wimi, 6-7000 ft., June (rains), 

 No. 7851 ; sunny hillsides, 6-7000 ft., No. 7812 ; Butagu, about 

 10,000 ft., July (rains), Nos. 8059, 7949, and 8008 pars. 



In the largest specimen the stem is ^ in. thick, and more than 

 a yard in length ; this specimen (No. 7851) is from a marshy place, 

 and has evidently grown very rankly, having much-elongated inter- 

 nodes, and leaves as much as 16 in. long and 1^ in. broad. No. 

 7812, from the suuny hillsides, is ouly 25 in., with shorter oval- 

 lanceolate and lanceolate leaves more crowded at the base of the 

 stem. The dense spike reaches 8-9 in. in length, the sharply- 

 reflexed linear-lanceolate or linear-acumiuate bracts 1 in. The 

 petals and sepals spread before the wide opening of the lip, which 

 rises 2 lines above them. The lateral sepals are 2^ lines loug by 



1 line broad; the smaller dorsal sepals and petals are scarcely 



2 lines long ; the narrow spurs are ^ in. long. In No. 80U8 the 

 spurs are slightly longer (8 lines), as are also the odd sepal and 

 the petals (2 5 lines). 



A well-marked species, near the South African S. ocellatum 

 Bolus [Orchids of South Africa, i. t. 23). 



Satyrium niloticum, sp. nov. Erecta ; caule crasso, foliis 

 vaginantibus superne lanceolatis vestito ; spica densa bracteosa, 

 bracteis 3-nerviis lineari-lanceolatis acuminatis retiexis quam flores 

 (inter minores) duplo longioribus ; sepalis petalisque similibus 

 glabris cum labelli basi in tubum brevem connatis, sep. dorsali 

 cum petalis lineari-oblongis, sep. lateralibus oblongis, majoribus, 

 labello rotunde cucullato dorso carinato, apice brevi obtuso, cal- 

 caribus tenuibus apice acutis, ovarium sessile subtequantibus ; 

 columua tenui tereti, stigmate erecto, rostello 3-dentato, dente 

 medio multo majore inter pollinarii glandulos projecto. 



Hab. Marsh, Nandi, Nile watershed, 7-8000 ft., Dec. 1893, 

 No. 6938. 



A unique specimen, with the lower portion absent. It is 16 in. 

 in height, bearing 2 adpressed leaves, which, including the sheath, 

 are about 5 in. long. The oblong spike, the flowers in the upper part 

 of which are still unexpanded, is 4 in. long. The narrow pointed 

 bracts reach 1 in. in length. The odd sepal and petals are 2 lines 

 by I line, the lateral sepals 2| lines by 1 line. The open hood rises 

 2^ lines above the other spreading perianth-limbs. The narrow 

 oval sessile ovary is 5 lines long. 



A species closely allied to the above, but distinguished by the 

 marked similarity of its five perianth-segments, very short obtuse 

 apex to the hood, and tridentate rostellum. 



