KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 25. N:0 5. 69 



110. C. bacciferum, n. sp. C. submagnum, ch*c. lY 2 -plo longius quam latins, ovale; semi- 

 cellula? late ovales, angulis basalibus aut rotundata? aut sub-aeuta?, apiee rotundata 1 ; 

 membrana tenni, nodulis magnis in series obliqnas ordinatis (unumquaque in centro 

 niaculam babens), praedita, et inter nodnios bacciformes modice punctata. A fronte 

 series nodulornm cire. 10. A vert. et a lat. non observatum. Sinn cnneato, modice 

 aperto. 



Long. 74, lat, 52, lat. isth. 20 //. T. X, f. 8. 

 Cfr C. insi(/ne, No. 57. 



111. C. macrosporuni, n. sp. C. minntnni, circ. 1 2 -plo longius quam latum, sub-quadrati- 

 cuin; semicelluhe depresso-quadrata?, basi rotundata.', lateribus et apice paullo in- 

 curvatae; angulis superioribus ca?sis; in centro tuberculo parvo instruetae, paullo tu- 

 mida?; membrana glabra; sinu angusto, lineari, externe parum ampliato. A latere 

 visum semicellulis pyriformibus ; a vertice ovale. Zygospora magna, spha^rica; mem- 

 brana iniqua, crassa, 



Long. 13, lat. 9, lat. isth. 4.5, crass. 6, diam. zyg. 19.5 ,». T. X, f. 11 (and 

 Wallich Mscr. No. 161). 



»Sporangium orbicular, surface somewhat uneven, central mäss påle green, radi- 

 ate. The capsule of a påle reddish yellow,» G. C. W. This zygospore in size is 

 somewhat near to tliat of C. melanospörum Archer (sp. ined., tide J. Roy in litt. 

 c. ic), but the frond difters. Cfr No. 54 supra. 



112. C. rectosporuni, n. sp, C. minus, circ. sexta parte longius quam latins, truncato- 

 ovatuni: semicellula* truneato-pyramidata?, lateribus et angulis rotundatae; membrana 

 glabra; sinu angusto, lineari, extrorsum parum ampliato; a vertice visum coinpresso- 

 ovale. Zygospora magna, quadratica, angulis rotundata; membrana crassa. 



Long. 29, lat. 24, lat. isth. 5 (usque ad 3.5), crass. 12, lat. zyg. 28 ,". T. X, 

 f. 16 (sec. Wallich Mscr. No. 164). 



The quadrate zvgospore is verv curious. Wallich says of it — »Enclosed with 

 the segments in a coinmon mucous matrix. Four fronds seem concerned in the for- 

 mation of this one sporangium,» This fact seems very extraordinary! In front view 

 the frond resembles C. tithophoru/m Nordst. r. tu ajo r Fyaciu. (Desni. hov. 1889, p. 11, 

 t. V, f. 9), but the other views essentiallv differ. 



113. C. octagonuni, n. sp. C. minus, fere tam longum quam latum, öctagonum; semi- 

 cellulae quadratica 1 , basi rotundata?, angulis superioribus c-vsis, apice et lateribus 

 paullo incurvata 1 , ventre tumida?; membrana glabra; sinu lineari, extrorsum vix aperto. 

 A vertice visum fusiforme; a latere angulato-lanceolatum. 



Long. 15, lat. 14, lat, isth. 4 — 5, crass. 5 — 6 ,". T. X, f. 12 (and Wallich 

 Mscr. No. 202). 



Near to ('. concinnum (Rabh.) Reinsch, Alg. Frank. p. 110, t. IX, f. III, but 

 with sides and apices incurvate, not straight; it also difters in being centrally tumid; 

 it differs from C. Ménegkitoii Bréb. in the vertical and lateral aspects. This species 

 often forms filaments of 3 — 7 fronds. 



114. C. sparsum, n. sp. C. submediocre, vix 1 7 2 -plo latins quam longius, late ovale; semi- 

 cellula? dolabriformes, basi dejeeta\ acuta\ dorso depresso-rotundata 1 , ventre paullo 



