KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 25. X:0 5. 165 



commoii to thern all. The processes vary in number, forming bands. The cells 

 themselves have an additional inner coat proper to each one; their surfaces appear 

 covered by numerous circular spaces, probably enipty portions of the common mem- 

 brane. The eell-contents are of a påle dusky brown in colour and minutely granulaix 

 G. C. W., Mser. No. 328. 



Long. 344, lat. 36; diam. cellules 20— 32 ,«. T. XXI, f. 19 (long. abbrev.); 

 after Wallich. 



Raneegunge, Nov. 1855. 

 [For other endophytic forms, see under t. XII, f. 12; t. XVII, f. 19 d; t. XVIII, f. 

 18 h; and t. XIX, f. 3 g. Cfr note, and authorities cited, under Arilir odesmus convergensi] 



APPENDIX. 



In the interim between the journey of my Mser. to Sweden, and its revision hy 

 me, I have discovered, from Eastern India, a fragment of a curious Penium which I 

 believe to- be new, and which I have previously seen from North America (U. 8. A.), and 

 from Perthshire, Scotland. Tliis I have described in litt. c. ieone (apud J. Roy) as l\ 

 Royanum mihi. I may tlius briefly state it: 



1. Penium Royanum, n. sp. P. rectum, cylindricum, oblongum, jnedio tumidum, utraque 

 apiee leniter attenuatum, apicibus late rotundatis incrassatis, longitudinaliter spiraliter 

 striatum, striis (eire. 12) minutoruin granulorum compositis, striis tranSversis remotis 

 5 — 7 instructum, apud quamque striam transversam paullo constrictum, lateribus leniter 

 6 — -8 undulatis; membrana pallide rufescens. 



Long. 112 — 168, lat. max. 21 — 27 u. T. XXIII, f. 7. 



The measurements are those of the American and Scottish plants, with which 

 the fragment fullv accorded. 



Ifah. [Minnesota. U. S. A.; near Loch Earn, Perthshire;] E. Bengal ex Utricu- 

 laria flexuosa, <i. v. L. 



This is near to P. spirostriolatum Bakkeb, mentioned by Joshua 1. c., concerning 

 which and another congener (about both of which some doubt seems to exist,) I take 

 leave to subjoin a few remarks with diagnos» s. 



2. P. spirostriolatum, Bakkeb (Proc. of Dubl. Micr. Club, in Q. Journ. Mic Sci. IX, p. 

 194, 1869; XI, p. 93, 1871; Wolle Fr. Alg. U. S. Amer. p. 22. t. LXI, f. 17; non 

 Tuknek J. Micr. Soc. 1885 ut infra; Closterium spiraliferum Jacobs. Desm. Danmk. 

 p. 177, t. VII, f. 8; P. Haynaldii (i lin, are Boldt? Sibir. Chlor. p. 120, t. VI, 

 f. 42.) 



P. rectum, plus minus turgidum, versus apices distincte et medio vel non sen- 

 sirn attenuatum, apicibus truncato-rotundatis plerumque paullo dilatatis incrassatis 

 striis longitudinalibus parallelis 11 — 13 plus minus tenuibus spiraliter instructum; 

 . striis transversis remotis 5 — 9 evidentibus; lateribus vix vel magis undulatis, mem- 

 brana hyalina vel apicibus brunneis vel tota luteolo-rufescente aut fusco-brunnea. 

 Dimensiones: 



