OF THE THIRD TANGANYIKA EXPEDITION. 99 
4. Gipoconium Kurzu, Zeller, in Hedwigia, xii. (1873) p. 189; Hirn, 
т Act. Soc. Kei. Fennice, xxvii. (1900) p. 185, t. 16. fig. 93. 
Crass. cell. veget. ...... 47-51 и; altit. 2-5-plo major ; 
>> 00000. ......... 78-90 p; „ 111-121 p; 
‚‚ оозрог. ......... 75-86 и; „ 80- 90 y; 
» cell antherid.... 44-50 и;  , 6- 16 p. 
Nyasa.—In swamp, Karonga (29 June, 1904; no. 32). 
This interesting species was in fine fruiting condition. It has only pre- 
viously been found in the Pegu province of E. India. Hirn states that the 
number of cells composing the antheridia may be as many as six. In the 
Afriean specimens four or five was the usual number, but some of the 
antheridia were composed of as many as 15 cells. The hypogynous position 
of the antheridia was very characteristic. 
9. Фровомом Kirura, sp. n 
(E. dioieum, nannandrium ; oogoniis singulis vel binis, subglobosis vel 
obovato-globosis, poro superiore apertis ; oosporis globosis, oogonia non com- 
plentibus, membrana glabra; cellulis suffultioriis tumidis ; androsporangiis 
e +? cellula terminali obtusa ; nannandribus elongatis, leviter curvatis, 
oblongis, inferne angustioribus, in cellulis suffultioriis et oogoniis sedentibus, 
antheridio interiori (?). 
Crass. cell. veget. ...... 26 ш; altit. 5-7-plo major ; 
„ O0gon. ......... 76-78 p; , 75-80 ш; 
>> оозрог. ......... 72 и; ›„ 12 u; 
„ cell.suffult. ... 445: p J-plo major ; 
., nannandr. ...... 12-19 и; 58-66 p. 
Тапрапу а. — п swamp, Kituta (26 Aug. 1904 ; no. 80). 
No examples of this species were observed in which the antheridia were 
fully formed, but from the structure of the dwarf-males (nannandria) there 
can be little doubt that they are internal in development. The only dicecious 
nannandrous species in which the antheridia are developed internally within 
the dwarf-males, and which can be compared with 07, Kitute in respect of 
size of vegetative cells and form of oogonia and oospores, are (FE. alternans, 
Wittr. & Lund., СЕ. cataractum, Wolle, and Œ. eyathigerum, Wittr. 
CE. Kitute differs from С. alternans in the smaller size of Из vegetative 
cells, which are more elongated, and in the oospores not filling the oogonia, 
The oogonia are also much. less numerous than т 7. alternans, and they are 
only found singly or in pairs near the ends of the filaments. 
From Œ. cyathi gerum it 1s distinguished by its relatively larger and 
differently-shaped oogonia and oospores, the latter being destitute of the 
longitudinal cost». 
It should also be compared with (Е. Borisienum, (Le Clere) Wittr., from 
H 2 
