KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 25. N:<> 5. 17 



Gen. 4. Penium, Breb. 



(De Brébisson, in litt. 1846; in Ralfs' Br. Desm. 1848). 



1. P. sublamellosuni, n. sp. P. mediocre, circ. 3-plo longius quain latum, cylindricuin 

 attenuatutn; medio leviter constrictum; apicibus rotundatis, membrana lsevi, vel sub- 

 tiliter punctata; laminis chlorophyllaceis 9 — 10; locello apicali magno, corpusculos multos 

 includentibus. Long. 85, lat. 27 ,«. 



T. I, f. 8, (after Wallich, Mscr. and fig. No. 99). 



»Raneegunge, in July» (G. C. W.). Very similar to P. lamellosum Breb., but 

 much smaller. 



2. P. navigium, u. sp. P. sub-majus, circ. 372-pl° longius quam latum, lanceolatum vel 

 naviculiforme, attenuatum, medio non constrictum, apicibus truncato-rotundatis; locellis 

 apicalibus magnis; sutura indistincta; membrana liyalina, pallide roseola, glabra. Long. 

 182, lat. 52 a. T. I, f. 9 (after Wallich Mscr. No. 91). 



»Endochrome divided at central portion, påle green; one sinuous fillet occupying 

 the central line, and sending small acicular processes (canaliculi) through the axis; . . 



Canaliculi 20, faint.» G. C. W., 1. c. Probably nearest to P. iibellula, (Focke) 



Nordst. [= P. closteri oides, Ralfs], but much smaller, and broader in proportion to 

 its length. 



3. P. bisporuni, n. sp. P. medium vel minus, circ. 3 — ?> l l 2 -\)\o longius quam latum; cy- 

 lindricum, leviter attenuatum, medio non constrictum; membrana hyalina, glabra, achroa. 

 Locellis? Zygosporas geminas formans; in quaque capsula 3 (4?) formas juveniles; 

 zygosporis oblongo-rotundatis. Long. 49 — 70, lat. 14 — 22; zygs. long. max. 28 — 32 ,«. 

 T. I, f. 10 (after Wallich No. 100) x 550. 



4. P. lanceolatum, n. sp. P. mediocre, circ. 3-plo longius quam latum, elongatum, cy- 

 lindricum, attenuatum; in medio modice constrictum. Apicibus late rotundatis; mem- 

 brana punctata. Long. 81 — 98, lat. 26—36, lat. centr. semicell. 22 — 30 ju. T. I, f. 7 

 (after Wallich No. 101). 



»Terminal vesicle not visible, but moving granules are seen clustered together and 

 in motion at various parts of the frond. Endochrome påle green. Raneegunge, No- 

 vember.» — G. C. W., 1. c. Somewhat similar to P. lag enar oides, Roy., but irregularly, 

 and more closely, punctate; it is also much more slender than that form; in the puncta 

 it differs from P. Clevei, Lund. 



5. P. simplex, n. sp. P. recturn, circ. 9 — 10-plo longius quam latum, simpliciter cylin- 

 dricum, non constrictum. Lateribus parallelis; apicibus truncato-rotundatis; nucleus 

 centralis manifestus; corpusculi amylacei in unam seriem positi (4 — 6 in quaque semi- 

 cellula); locello apicali nullo! Membrana achroa, bevis. Long. 170 — 198, lat. 18 — 20/'. 

 T. III, f. 9 (after Wallich, No. 119 1. c). 



I know no species at all like this, with its straight parallel sides and sub-truncate 

 ends. No suture visible. The arrangement of the amylous corpuscles is more like 

 that in the genus Tetmemorus than in Penium. 



6. P. polymorphum, Perty (Kl. Lebensf., p. 207, t. XVI, f. 15), forma obesum ii. f. 



Forma paullo crassior quam forma typica, sed in cseteris consimilis. In fig. 

 puncta non delineata! Long. 57, lat. 30 ,«. T. VII, f. 7. 



K. Sv. Vet. Aknd. Handl. Kand. 25. N:o f). 3 



