KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 22. N:0 8. 31 



All the forms of this species ought to my opinion to be arranged as below: 



A. genuina. Lobi laterales elongati, graciles. 



a. indica. 



f. lobulis indivisis. Micr. Mahabuleshwarensis Hobson Notes p. 169 c. 



icone (long. 127 ,w, lat. 105 ju); Nokdst. Alg. et Charac. 1 p. 10 (long. 



140 u, lat. 114 ju; ex Java) et M. Morsa var. c)' Wallich Desm. Beng. 



p. 277, tab. 13, lig. 10 (long. 152 ,u, lat, 122 /i). 

 f. lobo superiore diviso. M. Wallichii Grun. in Rab. Beitr. II, p. 14, tab. 



2, fig. 21 (long. 130 u, lat. 115 ,"). 



b. earopcea. 



f. lobulis indivisis. M. Mahabuleshwarensis Lund. Desm. Suec. tab. 1, tig. 



6 (long. 170—200 ,u; lat. 160—190 /u); 

 f. lobulo superiore diviso. M. Wallichii Lund. 1. c. p. 15 (long. 224 /u; 



lat, 208 ,u). 



B. compacta. Lobi laterales crassiores et breviores. 



a. americana. 



f. lobulis indivisis. M. Mahabuleshwarensis Wolle Desm. Unit, St. tab. 



37, tig. 10) (long. 105 ,«, lat, 83 fi). 

 f. lobulis omnibus divisis. M. americana var. Hermanniana Wolle 1. c. 



tab. 32, hg. 5 (long. 115—125 f*; lat. 95 ,u). 



b. europcea. 



f. lobo superiore diviso. M. Hermanniana Reinsch Spec. gen. nov. Alg. 

 Fung. p. 120, tab. 21, fig. B (long. 200 <u, lat. 154 ju); 



c. novizelandica. M. ampullacea Mask. X. Z. Desm. p. 304. tab. 12, fig. 6 — 8. 

 f. lobulis indivisis 1. c. fig. 7 (long. 205 ,«, lat, 150 ,"). Tab. nostr. 2, fig. 



16 a, b. 

 f. lobulo superiore diviso 1. c. fig. 6 (long. 200, lat. 1 60). Tab. nostr. 2, 

 fig:. 16 c. 



7. M. euastroides Josh. Burm. Desm. p. 637, tab. 22, fig. 14. 



fi indi visa nov. var. Tab. 2, fig. 17. 



Lobi laterales semicellularum indivisi triangulai-i-producti granulis acutis in series 

 verticales ordinatis; pars basilaris lobi polaris linearis; tumör rotundatus granulatus supra 

 isthmum situs. A Micr. Mahabideshwarensis /? ampullacea Mask. et M. trojrica Nordst. 

 prsecipue granulis loborum lateralium non in axi longitudinali, sed transversali sitis 

 et directione loborum lobi polaris differt, ab hac specie (Nordst. Desm. Brås. p. 219, 

 tab. 2, fig. 15; M. expansa (i Wallich Desm. Beng. p. 276, tab. 13, fig. 9) lobis latera- 

 libus integris et defectu processuum accessoriarum lobi polaris abhorret. 



Long. 112 ,u, lat, 99 ju. 



Omatangi (248). 



Having met with few specimens of this form, I am in doubt as to its specific status. 

 A form very near to this one (but without the granulated protuberance) has been issued 



