RONGL. SV. VET. AKADEMIENS IIANDUNi; A K. BAND. 25. N:0 5. 65 



externe ampliato. A latere visum bi-globulatum; a vertiee ovato-fusiforme, lateribus 

 in medio tmuidis, apicem versus paullo ineavatis. 



Long. 29—45, lat. 24—37, lat. isth. 7—10. crass. 17—25 fi. T. IX, f. 31. 



Near to C. granatum Delp. (p. 107, t. VII, f. 46 — 48) in Desm. Sub-alp. (non 

 auctorum) but differs from this in side and end aspects. Also Wallicti, Mscr. No. 157. 



92. C. scabrum, n. sp. C. mediocre, fere tam longum quam latum, quadraticum; semi- 

 cellula? parallelogrammiformes; angulis parum rotundatis, (lateribus et apice fere rectis), 

 apicibus truncatis; sinn profundo, lineari, angusto, extrorsum parum ampliato; mem- 

 brana dense verrucosa, scabra; granulis in exteriorem partem parum radiatini positis, 

 quumque laterum versus conglomeratis, 'rosettas' efficientibus, instructa, Pars centralis 

 frondis juxta isthmum lasvis. A lat. et a vert. non observatum. 



Long. 49, lat. 52, lat, isth. 20 //. T. IX, f. 32. 



93. C. orientale, n. sp. C. sub-mediocre, quinta parte longius quam latins; late pvrami- 

 datum; semicellulae rotundo-triangulares, basi et apice rotundata\ medio non tumidae, 

 lateribus supra basin paullo ineavatis; sinn brevi, lineari, externe valde ampliato; mem- 

 brana glabra. Corpora amylacea dua in quaque semicellula, A vertiee visum ovale; 

 a latere ovato-lanceolatum, medio vix constrictum. 



Long. 43—65, lat, 36—55, lat, isth. 18—26, crass. 18—28 ,«. T. IX, f. 35. 



94. C. Raneegungense, n. sp. C. minus, circ. l l / 2 -plo longius quam latius; semicellula» 

 rotundato-triangulares, angulis fotundatse, lateribus incavatae; sinu lineari, profundo, 

 angusto, externe ampliato; membrana glabra aut subtiliter punctata. A vertiee visum 

 ovale; a latere lanceolatum, modice constrictum, apice rotundatum, apicem versus la- 

 teribus incurvatis. Zygospora sphaerica, mediocris, superficie cum multis prominentiis 

 rotundatis plena, circ. 9 apud marginen! visis. Karo semicelluhe paullo in centro tu- 

 mida3, annulum granulorum ferentes (fi ornatum). [Forsan C granatum Delp. (Desm. 

 Sub-alp. p. 100, t. VII, f. 16—21) non Bkéb. nec auet.] 



* et (i. Long. 25 — 32.5, lat. 19 — 24, lat. isth. 6 — 8.5, crass. circ. 16, diam. zyg. 

 29 fi. T. X, f. 13. 



From Dr. Wallichs sketch, Mscr. Xo. 131, there appears to be but one amvlum 

 corpusele in each semicell. Dr. W. savs that the conjugating fronds assume the aj>- 

 position shown in a and a 1 . The mature zygospore is reddish-brown in colour. 



95. C. dulciferum, n. sp. C. submediocre, tam longum quam latum, truncato-ovatum; semi- 

 cellulai late flabelliformes; angulis basalibus sub-truncatis, lateribus sinuato-inclinatis, 

 apicibus truncatis; memltrana granulata, margine series 6 — 7 concentricas granulorum 

 minutorum praedita, in centro cujusque semicelluhp tumöre parvulo, annulo granulorum 

 orhato, instructa. Sinus apertus, amplus, triangularis, profundus. A vertiee visum 

 lanceolatum, apice truncatum, modice constrictum; semicellulis truncato-ovalibus — a 

 vertiee lanceolatum, medio truncato-tumidum, verticibus truncato-rotundatis. Corpora 

 amylacea singulatim locata. 



Long. 39—42, lat. 40, lat isth. 13, crass. 20-21 ,«. T. IX, f. 39. 

 This form in Wallich Mscr. No. 189, is named Euastrum anceps, but as it is 

 not a Euastrum, and as Lundell has appropriated the speciiic narae, this falls. It 



K. Sv. Vet. Akad. Handl. Band -,'5. N:o 5. '.» 



