93 
383. Janet Ch. — Le Volvox. — Limoges, 1912, Ducourtieux et Gout, 
8°, pp. i5i, Fig. i5. 
384. Senn G. — Physiologische Untersuchungen an Trentepohlia. — 
Verhandl. Schwei\. Naturf, Ges. 94. Jahresvers. Solothurn I 
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Zygnemaceaé 
385. Faber (von) F. C. — Spirogyra Tijbodensis n. sp. Fine schnell 
zerspringende Form mit parthenosporenàhnliche und normale 
Zygoten. — Ann, Jard. bot, Buiteu'^., 1912, pag. 258-205. 
386. Pickett F. L. — A case of changed polarity in Spirogyra lon- 
gata. — Bull. Torrey Botan. Club XXXIX, 1912, pag. 5o9-5ii. 
Characeae 
387. Druce C. Claridge. — Tolypella intricata Leonh. — Journal of 
Bolany voi. XLIX, 1911, pag. 235-236. 
388. Groves H. & J. — Nitella gracilis in West Cornwall. — Journal 
of Bolany voi. L, 1912, pag. 848-849. 
389. Losch H. — Ueber das Vorkommen eines zweiten Hùllquirles 
an den Eiknospen von Chara foetida. — Berichle der deutschen 
botan. Gesellsch. XXX, pag. 5 16-622, io Textfiguren. 
Bacillarieae 
390. Brown N. A. — Rhabdonema minutum. — Journ. Quekett Micr. 
Club ser. 2, voi. XI, n. 71, 1912, pag. 5 17-5 18. 
391. Naumann E. — Nannoplanktoniska Cycloteller i Syd-Svenska 
insjòar sasom en viktig faktor i planktons nàringsbiologi. — Bo- 
taniska Notiser 1912, Hàftet 6, pag. 267-280. 
392. Nelson E. M. — On thè « Pseudopodia » (Diatoms). — Journ, 
Quekett Micr, Club ser. 2, voi. XI, n. 71, 1912, pag. 5 16-517. 
393. Pantocsek J. — A Fertò tó Kovamoszat Virànya (Bacillariae La- 
cus Peisonis), 4 Tabi. — Pozsony, 1912, pag. 48 in 8°. 
394. Stokes W. B. — On Resolution obtained with dark - ground Illu- 
mination and their Relation to thè Spectrum Theory. — Journ, 
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