228 TRANSACTIONS OF THE TSess. lxxxi 



BULBOPHYLLUM ImOGENIAE : A NeW OrCHID FROM 



Nigeria. By Kenneth Hamilton. 



(Read 8th February 1917.) 



The following is a short note on two orchids collected by 

 me in Nigeria which were forwarded to the Royal Botanic 

 Garden, Edinburgh, and flowered there. Both have proved 

 to be new. The first, Polystacliya Hamiltonii, W. W, Sm., 

 was described in 1915, but I give below a more precise 

 record of the locality. Of the second a description is 

 given below. Types of both species are preserved in the 

 Herbarium of the Royal Botanic Garden, Edinburgh. 



Bulboph])llurii Imogeniae, K. Ham. Sp. nov. 



Species affinis B. recurvo, Lindl , B. viridi, Rolfe, et 

 B. WinJderi, Schltr. ; inflorescentia 1 cm. paulo superante 

 oblongo-globosa densiflora, sepalibus ± 4 mm. longis parte 

 superiore roseo-sutfusis inter alia conspicua ; flores majores 

 quam ei B. Whokleri, (|Uod ex descriptione proximum esse 

 videtur. 



Planta epiphytica ; rhizoma teres glabrum pseudobulbis 

 approximatis obsessum ; pseudobulbi ovoidei compressius- 

 culi obscure quadrangulati usque ad 3 cm. longi, 2-2*5 cm. 

 lati, unifoliati, raro bifoliati. Folia 5-10 cm. longa, 1-2 cm. 

 lata, patentia, oblongo-lanceolata acuta, basi cuneata vel 

 subrotundata, coriacea glabra. Pedunculi deflexi 2-4 cm. 

 longi (in planta duos annos culta) medio bractea lata 

 ornati ; inflorescentia 1 cm. paulo superans, ± 1 cm. lata 

 oblongo-globosa densiflora ; bracteae patentes oblanceolatae 

 vel obovatae translucenti-membranaceae 2-3 mm. longae. 

 Flores parvuli. Sepala aequilonga minute apiculata circ. 

 4 mm. longa carnosula glabra infra albido-menibranacea 

 •supra roseo-suflusa ; intermedium triangulari-lanceolatum, 

 lateralia valde obliqua falcata, basi margine anteriore 

 dilatata connata. Petala sepalis ± duplo breviora oblonga 

 obtusa vix vel brevissime apiculata tenuiter membranacea 

 Integra glabra. Labollum curvatum linguiforme oljtusum 

 carnoHulum ± 15 mm. longum purpureum marginibus 

 minute purpureo - pilosulum. Columna brevis brachiis 



