OF THE THIRD TANGANYIKA EXPEDITION. 113 
59. Evasrrum spinuLosum, Delp, in Mem. Accad. Sci. Torino, ser. 2, xxx. 
(1878) p. 97, t. 6. figs. 17, 18. 
Subsp. AFRICANUM, JVordst. in Act. Univ. Lund. xvi. (1880) p. 9, t. 1. fig. 16. 
Small form: long. 56 ш; lat. 485; lat. isthm, 12 y. 
Tanganyika.—A mong Algæ in swamp, Mrumbi (27 Dec. 1904; по. 196). 
forma puPLO-wINOR, W. $ G. S. West, in Trans. Linn. Soc. ser. 2, 
Bot. v. (1895) p. 51, t. 6. fig. 13. 
Long. 44 w; lat. 39 y. 
Муаза.— п swamp, Karonga (2 July, 1904 ; поз. 33 and 34). 
60. EuASTRUM PSEUDOPECTINATUM, Schmidle, in Engl. Bot. Jahrb. xxvi. 
(1898) p. 46, t. 2. fig. 39. 
Forma mucronibus lobi polaris reductis. (PI. 7, figs. 4—5.) 
Long. 44-46 ш; lat. 34-35: д; lat. lob. polar. 20-21:5 ш ; lat. isthm. 8 д. 
Tanganyika.—In swamp, Kituta (23 Aug. 1904; no. 72). 
61. EUASTRUM TRUNCATIFORME, sp. п. (Pl. 7. fig. 3.) 
Е. submediocre, circiter 14-ро longius quam latius, profundissime con- 
strictum, sinu angusto-lineari extremo subampliato ; semicellule trilobæ, 
ineisuris lateralibus subprofundis et angustis; lobis lateralibus sinuato- 
bilobulatis, lobulis subquadratis rotundo-emarginatis; lobo polari transverse 
rectangulari-fusiformi, lateribus sursum convergentibus et retusis, apice 
convexo; tumore magno glabro in lobo laterali unoquoque, tumore magno 
in centro lobi polaris, tumore parvo intra lobulum lateralem unumquemque; 
a vertice vise oblongo-elliptieze, polis rotundatis, tumoribus magnis binis 
subdistantibus: utrobique et tumore parvo polum unumquemque versus 
utrobique, lobo polari subrhomboideo; а latere vise subovate, tumore 
magno prope basin et tumore minore apicem rotundatum versus utrobique. 
Long. 47 ш; lat. 33 ш; lat. lob. polar. 21 р; lat. isthm. 8 ш; crass. 19 p. 
Victoria Nyanza.—Among Utricularia, near Entebbe (1 May, 1905; no.620). 
This species bears considerable resemblance to E. sympageum, W. & G. 
S. West (in Trans. Linn. Soc. ser. 2, Bot. v. (1895) p. 50, t. 6. fig. 11), а 
species known only from Madagascar, but is distinguished by the relatively 
smaller polar lobe, by the strongly retuse lateral lobes with broader angles 
(lobules), and by the different disposition of the surface tumours, the latter 
feature causing considerable differences in the vertical aud lateral views. 
It should also be compared with А. truncatum, Joshua (vide W. & G. S. 
West, l. c. vi. (1902) p. 152, t. 20. figs. 9, 10), from which it differs in the 
deeply retuse lateral lobes, the convex apex of the polar lobe, and the form 
of the polar lobe in vertical view. Тһе three large tumours of E. trun- 
catiforme also occur in the same relative positions on E. truncatum, but 
the latter possesses two others within the angles of the polar lobe, and 
LINN. JOURN.—BOTANY, VOL. XXXVIII. I 
