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Rh CBT^TOGAMIA. 389

cussed, and the details of a number of observations upon these points are added. Hoffmann. — Beitrage zur Entwickelungsgeschichte mid Anatomie

dor Agarieinen von Hermann Hoffmann. Bot. Z. 21 Dec. and 28 Dec. 1860.

■ Mycologische Studien uber die Gahrung, von Hermann

Hoffmann. Botanische Zeitung, 3rd Feb. I860, and 6th Feb. 1860.

Index Mycologicns. Sistens Icones et epecimina sicca

fungorum Europa?orum et exoticorum imprimis nupcr (indc a publicatione Friesiani systematis mycologici, et quoad species germanicas — Babemhorstii manualis florae germanicas cryptoga- micse) edita, ordine alphabetico composita, cum synonymic Autore Hermann Hoffmann.

This Index is in the form of a supplement to the Botanische Zeitung, 1860.

Hofmeister. — TJeber die Entwickelung der Sporen von Tuber sati- vum Yittad. Pringsheim's Jahrb. fur wiss. Bot. vol. 3, pt. 3, 1860.

Maisoxxeeve. — Note sur le Sphoeria militaris, Ehrh. considere comme parasite de la chenille processionaire du Pin (Bombyx pityocampa, Fabr.), communiquee au Congres cles delcgues des societes savantes en Avril, 1S59 ; par M. Durieu de Maisonneuve. (A pamphlet in 8vo. of eight pages, without date or indication of its origin, extracted, it would seem, from the proceedings of the meeting).

In the department of the Grironde, the caterpillar, which de- vours the leaves of the young shoots of firs, had made such ravages in the year 1858, that the proprietors were alarmed for the fate of their woods. This fact was followed by the appear- ance, in immense quantities, of SpJi. militaris, Ehrh., one of the club-shaped species of Sphoeria parasitic on the larva? of insects, and which is remarkable for its golden red colour. M. Durieu de Maisonneuve, having visited the woods in December, 1858, observed at once several individuals of this Sphoeria parasitic upon the caterpillar, which was enclosed in its cocoon, not having yet passed into its chrysalid condition. In all the other parts of the woods which he visited, he observed the same Fungus, at- tached to the same caterpillar, dead, and buried in the ground. M. Tulasne has observed that the perfect state of Sph. militaris is much more rare than its secondary or isarioid condition ; and that this latter is more rare than its primary or byssoid state ; and inasmuch as the perfect plant "occurred in such quantities that the ground round the diseased trees was covered with it, the quantity of caterpillars destroyed by this Sphoeria in all stages of its growth must (in the author's opinion) have been prodigious.

Muggexberg. —Beitrage zur Pilzkunde von St. Schulzer v. Muggen- burg. Wien. Z. B. V. Band x. p. 321 and 807.

The first of these two papers contains an account of a new fungus supposed to be a species of Ditiola, to which the author