KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 25. N:o 5. 141 



— — f. minor a. Long. 11 — 12, lat. lo — 15, lat. constr. 6 — 7, crass. 9 — 10 f*. 

 (Fig. a b). 



— — f. major b. Long. 19, lat. 14 — 15, lat. constr. 7 u. (Fig. c). 



The form of the sinus is different, and the granules larger than in y a; this 

 form = S. excavatum var. d Wallich, Beng. Desm. p. 192, t. VII, f. 17. T. XVII, 

 f. 19. 



The form / granulata of Rabh. is not the Sphoe. granulatum of Roy and Bisset 

 (Jap. Desm. p. 242, t. 2G8, f. 17); but it = £. spinulosum? Wolle, Desm. U. S. A. 

 p. 31 (non p. 159!), t. IV, f. 14. 



3. S. Wallichii, Jacobs. (Desm. Danmk. p. 211, 1875; Wolle Desm. U. S. A.? p. 30, 

 t. IV, f. 15, angulis non granulatis!; S. excavatum var. fi Wallich Desm. Beng. p. 

 192, t, VII, f. 15). 



Long. 15 — 1:6; lat. 16 — 17, lat. constr. 6 — 7, crass. 8 fi fide Wallich Mscr. No. 

 57, f. 1. T. XVIII, f. 1, 13, after Wallich. 



»Lobes abruptlv truncate, their truncate surfaces flattened, with a niinute tu- 

 bercle at each angle, and four or more tubercles on each front view of the joints». 

 G. G. W. p. 192. I must observe t hat in Wallich 1. c. »joint» — »frond» when he 

 is describing filamentous forms. 



T. XVIII, f. 12, »separated joints sbewing the figure of each joint in the fila- 

 ment f. 1 more distinctly. As soon as the joints become independent (and old?) the 

 form appears to become more marked and developed», W. Mscr. f. 4. 



(The S. rectangnlare of Wolle 1. c. p. 31, t. XLIX, f. 9, except that the apices 

 of the cells are a little eoncave, would seem to be but a large broad form of the one 

 he gives, but doubtfully, as S. Wallichii; I hardly think the latter can be hereto 

 referred). 



4. S. Indicum, n. sp. (S. excavatum rar. y Wallich Beng. Desm. p. 192, t. VII, f. 

 IG, 1860). 



Long. 15 — 16, lat. 18 — 19, lat. constr. 5 — 6, crass. 8 — 9 f*. 



»Lobes broadly lanceolate, coustrietion angular, exiremitiea acute, with one tu- 

 bercle at their apices, Wallich 1. c. p. 192. 



Long. 15 — 16, lat. 15 — 19, lat. constr. 5 — 6, er. 8 — 8.5 ju, sec. Wallich Mscr. 

 No. 59. T. XVIII, f. 2, after G. C. W. 



5. 8. Bengaleiise, n. sp. S. medioere, paullo latins quairi longuni; semicellulis reniformi- 

 bus, lateribus obscure 3-angulatis margine ad angulos 3 — 4 granulis externe et interne 

 granulis sparsis ornatis, doi-so fere ]>lanis, centrali parte frondis Isevi; sinu amplo ro- 

 tundato extrorsum parum constricto. Cellula? processubus parvis spha>ricis conjuncta 1 . 

 A latere visum clepsydriforme medio modice constrictum. 



Long. 14—16, lat, 16—18, lat, constr. 7—8, crass. 8 ju. T. XVIII, f. 5 (also 

 in Wallich Mscr. No. 58), a b X 350, c X 700. 



6. S. exiguum, n. sp. S. parvum, fere tam longura quam latum; semicellulis ovalibus, 

 lateribus rotundatis, dorso fere planis; membrana glabra; sinu valde aperto rotundato; 

 cellulis a latere clepsydriformibus compressis, medio parum constrictis; frondes pro- 

 cessubus minimis (sphaericis?) conjuncta\ Habitu fere S. excavato consimile. 



