PRorEssOR OLTVEU ON AFRic.vN lextibulaeie.t:. 115 



described. The occurrence of the latter genus in Africa is in- 

 teresting, as it has hitherto been regarded as exclusively Brazilian. 

 Specimens of i)robably the same species as that gathered by Dr. 

 Welwitsch are in the Hookerian and Dublin collections, from 

 Burke (Magaliesberg), and in Mr. Bentham's herbarium, from 

 Zeyher. 



It is very difficult to trace the geographical distribution of Blad- 

 derworts, owing to the imperfect way in which they are often dried 

 by collectors, and especially to the insufficiency of the published 

 descriptions of many species of which we have not the type speci- 

 mens within reach. A few of Dr. Welwitsch's plants, if I have cor- 

 rectly determined them, are widely spread. JJ. subulata^ of which 

 Barter also gathered specimens in Lagos Island, is a well-known 

 American species: it is the only African Utricularia that I have seen 

 with medio-fised bracts. U, reticulata^ TT, stellaris, and U. diantha 

 are Indian, as is also TI. ccerulea^ of which Barter sent home speci- 

 mens from the Niger Expedition. Dr. Hooker, in his memoir 

 upon the botany of the Cameroons (Linn. Journ., Bot., vii. 209), 

 records the occurrence upon those mountains, at an elevation of 

 5000 feet, of the elegant little Indian ZT". orhiculata. It is not in 

 Dr. Welwitsch's herbarium, but it is probably found at Sierra 

 Leone, as pointed out by Benjamin, who indicated its close rela- 

 tionship to, if not identity w4th, TT. striatula^ Smith, the type 

 specimens of which species are very imperfect. U. Sandersoni^ 



( 



fi 



orhiculata and a few Himalayan species belong, but it wants the 



appendaged 

 genus. 



1. Genlisea, >S'^. miaire. 



G. AFnicANA,'sp. nov. Scapo 3-GO -floro, pedicello flori aequilongo 

 vel longiore, corolla; purpureae labio superiore late ovato, inferiore 

 triloho calcar porrectum obtusum ajquante. — Folia caniosula dense 



b 



rosulata, spathulata v. obovata, obtusa, integerrlma, in petiolum angus- 



tata, glabra, saipius |-1 poll, longa, 1^—4 lin. lata, interdum minuta, 

 V. elongata ad 2 poll, attenuata. Scapi 4-14 poll, lougi, erecti, in- 

 terdum ramosi, ramis strictis adscendentibus, squamis 1-4 minutis 

 basifixis remotis saepe instructi, imo glabri, sursum glanduloso-|iuberuli 

 vel glabrescentes, raro 1-2-flori. Braciew minutae basifixa; lanceolate ; 

 bracteolas aequilonga; angustiores. PedicelU graciles, sa;pius glandu- 

 loso-pubescentes, 3-8 lin. longi, fructiferi adscendentes v. subpatentes. 

 Calyx 5-partitus, lobis subsequalibus, oblongo-lanceolatis acutiusculis. 



LINN. PKOC, — BOTANY, VOL. IX. L 



