Part 6

Ehrenberg compared the whole structure of an Agaric with that of a mould, the mycelium corresponding with the hyphasma, the stem and pileus with the flocci, and the hymenium with the fructifying branchlets. The comparison is no less ingenious than true, and gives a lively idea of the connection of the more noble with the more humble fungi.--Ehrb. de Mycetogenesi.

In Paxillus involutus the hymenium may be readily torn off and unfolded.

This was well delineated in "Flora Danica," plate 834, as observed in Coprinus comatus as long ago as 1780.

A. de Bary, "Morphologie und Physiologie der Pilze," in "Hofmeister's Handbuch," vol. ii. cap. 5, 1866, translated in "Grevillea," vol. i. p. 181.

"Die Pollinarien und Spermatien von Agaricus," in "Botanische Zeitung," Feb. 29 and March 7, 1856.

"Essai d'une Flore mycologique de la Région de Montpellier." Paris, 1863.

Hoffmann, "Botanische Zeitung," 1856, p. 139.

Corda, "Icones Fungorum hucusque cognitorum," iii. p. 41. Prague, 1839.

Cooke, M. C., "Anatomy of a Mushroom," in "Popular Science Review," vol. viii. p. 380.

An attempt was made to show that, in Agaricus melleus, distinct asci were found, in a certain stage, on the gills or lamellæ. We have in vain examined the gills in various conditions, and could never detect anything of the kind. It is probable that the asci belonged to some species of Hypomyces, a genus of parasitic Sphæriaceous fungi.

It is not intended that the spores are always quaternate in Agaricini, though that number is constant in the more typical species. They sometimes exceed four, and are sometimes reduced to one.

The species long known as Hydnum gelatinosum was examined by Mr. F. Currey in 1860 (Journ. Linn. Soc.), and he came to the conclusion that it was not a good Hydnum. Since then it has been made the type of a new genus (Hydnogloea B. and Br. or, as called by Fries, in the new edition of "Epicrisis," Tremellodon, Pers. Myc. Eur.), and transferred to the Tremellini. Currey says, upon examining the fructification, he was surprised to find that, although in its external characters it was a perfect Hydnum, it bore the fruit of a Tremella. If one of the teeth be examined with the microscope, it will be seen to consist of threads bearing four-lobed sporophores, and spores exactly similar to Tremella. It will thus be seen, he adds, that the plant is exactly intermediate between Hydnei and Tremellini, forming, as it were, a stepping-stone from one to the other.

Tulasne, L. R. and C., "Observations on the Organization of the Tremellini," in "Ann. des Sci. Nat." 3^me sér. xix. (1853), pp. 193, &c.

M. Léveillé, in "Ann. des Sci. Nat." 2^me sér. viii. p. 328; 3^me sér. ix. p. 127; also Bonorden, "Handbuch der Mycologie," p. 151.

Tulasne, in "Ann. des Sci. Nat." (loc. cit.) xix. pl. x. fig. 29. Tulasne, "New Notes upon Tremellinous Fungi," in "Journ. Linn. Soc." vol. xiii. (1871), p. 31.

Berkeley, M. J., "On the Fructification of Lycoperdon, Phallus, &c.," in "Ann. Nat. Hist." 1840, vol. iv. p. 158, pl. 5. Berkeley, M. J., "Introduction Crypt. Bot." p. 346.

Tulasne, L. R. and C., "Fungi Hypogæi." Paris. Berkeley and Broome, "British Hypogæous Fungi," in "Ann. Nat. Hist." 1846, xviii. p. 74. Corda, "Icones Fungorum," vol. vi. pl. vii. viii.

Tulasne, "Sur le Genre Secotium," in "Ann. des Sci. Nat." (1845), 3^me sér. vol. iv. p. 169, plate 9.

Tulasne, L. R. and C., "De la Fructification des Scleroderma comparée a celle des Lycoperdon et des Borista," in "Ann. des Sci. Nat." 1842, xvii. p. 5. Tulasne, L. R. and C., "Sur les Genres Polysaccum et Geaster," in "Ann. des Sci. Nat." 1842, xviii. p. 129, pl. 5 and 6.

Berkeley, "On the Fructification of Lycoperdon, &c.," in "Annals of Natural History" (1840), iv. p. 155.

Wigand, "Morphologie des Genres Trichia et Arcyria," in "Ann. des Sci. Nat." 4^me sér. xvi. p. 223.

Currey, "On Spiral Threads of Trichia," in "Quart. Journ. Micr. Science" (1855), iii. p. 17.

In some of the genera, as, for instance, in Badhamia, Enerthenema, and Reticularia, the spores are produced within delicate cells or cysts, which are afterwards absorbed.

Tulasne, "Essai d'une Monographie des Nidulariées," in "Ann. des Sci. Nat." (1844), i. 41 and 64.

Berkeley, M. J., "Introduction, Crypt. Bot." p. 330.

Berkeley, M. J., "Introduction, Crypt. Bot." p. 329.

In the Cæomacei and Pucciniæi the term "pseudospore" would be much more accurate.

Léveillé, "Sur la Disposition Méthodique des Urédinées," in "Ann. des Sci. Nat." (1847), vol. viii. p. 369.