PKOFESSOB OLITEE O^ AERICAK LENTIBULAIIIE^. 149 



de Empalanca, locis breve dtimetosis niuscosis humidiusculis, ad 5000 

 usque ad 5500 ped. alt./* Apr. 18fi0 ! Swamp, Lagos Island, Barter 

 in herb. Hook, ! (? Sierra Leone, Smeathraann and Afzelius, herb, Linn, 



Soc), 



This is a well-known American plant. Between tlie African 

 and American specimens I am unable to find any difference, 

 Thej agree in their setiform scapes and divaricate pedicels, mi- 

 nute bracts free below their insertion, colour of corolla and thick 

 porrect spur, which is about equal in length to the 3-lobed lower 

 Kp of the corolla. .-.•.. 



B, Scapus squamis, bracteis bracteolisque basifixis, 

 a. Pedicelli lobis calycis ssepius longiores v. eisdem subsequilongL 



9. U. RETICULATA, Smith. 



Welwitseh, Iter Angolense, no. 265. Distr. Huilla, "Valde rara in 

 pratis palustribus subspongiosis ad sinistrara fluminis Guipumpunhime 

 Sobati de Humpata (circa 4800 ped. alt.)." Apr. 1860, 



Excepting that the pedicels of the young fruits are ascending 

 instead of reflcxed, I do not find any difference between this plant 

 and the common Indian typical form. Dr. "Welwitsch's speci- 

 mens are twining, and li-20 inches tall. What a fine thing this 

 would be to introduce into our tropical aquaria ! 



10. U. CiERULEA, Linn, herb.; Oliver in Linn, Proc,^ Bot,, iii, 1/9; 

 In a swamp in Lagos Island, Niger Expedition, Barter in herb. Hook, I 



11. U. MANNii, sp. nova. Scapo gracili glabro, 2-5-poll., 1-3-floro, 

 pedicellis saepius patentibus, corollae labio ^periore erecto suboblongo 

 obtuso integro calycis lobum superiorem obtusura paulo excedente, 

 labio inferiore flabelliformi-cuneato integro, calcari conico-cylindrico 

 recto dependente calycis lobo inferiore longiore, lobo calycis persistentis 

 superiore demum inferiore fere duplo longiore. — Fo/ia anguste spathu- 

 lata obtusa 1-2^ poll, longa, in petiolum longe angustata. Scapus 

 squamis paucis subulatis basifixis instructus. Calyx lobo inferiore 

 ovato-elliptico obtuso, demum minute bifido. 



Camaroons mountain, 4000-6000 feet, Mann ! 



This is the imnamed plant referred to in Dr. Hooker's memoir 

 on the plants of the Camaroons (Linn. Joum. vii. 209). Speci- 

 mens in flower have been received since. The colour of the 

 flower remains uncertain. 



12. U, SPIRALIS, Smith {A. DC, Prod, viii. 14). 

 Sierra Leone, AfzeliuSy 1798. 



The solitary specimen in Smith's herbarium resembles a slender 

 form of TT rpf.ir^il^tn of whirh I should have been inclined to re- 



