KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 25. N:0 5. 113 



40. S. Strensallense, Turner, sp. nov. S. raediocre, fere tam longum tam latura; semicellulis 

 depresso-ovatis, dorso leniter convexis, e basi rotundate inflatis; angulis rotundatis; 

 membrana dense aculeata, aculei in series 9 — 10 transversas dispositi; parte juxta isth- 

 mura laevi; sinu acuto, externe aperto. A vertiee visum triangulare, lateribus leviter 

 concavis, angulis late rotundatis. Primum ad »Strensall Common», prope Eboracum 

 (York), Anglia, inveni 1883. 



Long. 65, lat. 03, lat. isth. 21, long. acul. 3—6 /u. T. XVII, f. 1x330. 



The spines at the edge of the frond sometimes cross each other, this gives some 

 of them an apparently bifid appearance, which at first deceived me, but after examina- 

 tion showed the aculei to be simple. Only one specimen seen. 



Northern India (Sikhim?). 



41. S. sociatum, Wolle (Desm. U. 8. Amer. p. 142, t. XL V, f. 22, 23). A vertiee visum 

 diametro s. sp. circ. 30, long. sp. 4 — 5 ,u. 



T. XVII, f. 13. A fronte non observatum. 

 This agrees fairly well with Wolle's plant. 



42. S. spinosissinmni, n. sp. S. magnum, fere circulare, quinta usque ad septa parte lon- 

 gius quam latins; semicellulis ovatis, dorso leniter et lateribus late rotundatis; mem- 

 brana spinosissima; sinu lineari, angusto, extrorsum ampliato. A vertiee visum tri- 

 angulari-rotundatum, non compressum. 



Long. 68—81, lat. 56—70 (sp. incl.), lat. isth. 14—16, long. spin. 4—6.5 M- 



T. XIII, f. 7 (after Wallich Mscr. No. 147). 



Walijch's measure is (circ.) Long. 71, lat. 58 (sin. acul.), long. spin. 4 — 6.5 ,«. 



I have seen forms much like it, but hardly so denselv spinous, which I have 

 incorporated with my dimensions, but give Wallich's tigure. Endochrome in large 

 globular masses», G. C. W. 



Raneegunge, July 1855. Rare. 



43. S. polytrichuni, (Perty) Lundell (Desm. Suec. ]). 63, 1871; P/n/casfn/ui potytrichum 

 Perty, Kl. Lebensf. p. 210, t. XVI, f. 24). Forma minor, lateribus seniicelluhirum 

 (a vertiee) paullo incurvatis. 



Long. 40, lat. 36, lat. isth. 11, long. acul. 3.5 — 6.5 ju. 

 T. XIII, f. 16 (after Wallich Mscr. No. 272). 



This is much smaller than the Swedish form (long. 72- — 78 ,« Lund 1. c), but 

 not far from Perty's dimensions (long. 46 /u). 



Raneegunge, Oct. 1855. Rather rare, G. C. W. 



44. S. margaritaceuni, (Ehrr.) Mengh. (Synops. Desm. p. 227, 1840; Ralfs Annals N. H. 

 vol. XV, p. 157, t. XI, f. 7; Pentasterias margaritacea Ehr. Infus. p. 144, t. X, f. 15; 

 Phyvastrum inargaritaceum, Ktz. Phyc. Germ. p. 138; Goniocystis (Pentasterias) mar- 

 garitacea Hass. Br. Er. Alg. p. 356, t. 85, f. 7), var. inornutuin, n. v. Vertiee visu 

 parte mediana glabra non granulata. 



Long. 22.7, lat. 26, lat, isth. 8 ^, G. C. VY. 



T. XIII, f. 22 (after Wallich Mscr. No. 217), f. pentagona. 



45. S. stellatum, Reinsch (In Rabh. Alg. Europ. No. 1407, 1862; Spec. Alg. Fung. p. 130, 

 t. XXIII d, f. 2, 1866), var. pulchelliiiii, n. v. Processubus 6 — 7, basi ornatis, quoque 



K. St. Vet. Akad. Hundl. Band 25. N:o 5. 15 



