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MARSH GENTIAN. Is also a beautiful plant, and grows well in any moist place. From its beautiful blue flowers it is well adapted to the flower garden; it delights in bog earth. GERANIUM phaeum. BLACK-FLOWERED GERANIUM. This is a perennial, and makes a fine ornamental plant for the shrubbery: it will grow in any soil and situation. GLAUCUM Phoeniceum.
Turpin, Hoffmann, and Trecul have, therefore, been based on one of these illusions which we meet with so frequently in microscopical observations. To bring about the transformation of the yeast of beer into mycoderma cerevisiae or into penicillium glaucum we must accept the conditions under which these two forms are obtained.
What we have said of Penicillium glaucum will apply equally to Mycoderma cerevisiae. Notwithstanding that Turpin and Trecul may assert to the contrary, yeast, in contact with air as it was under the conditions of the experiment just described, will not yield Mycoderma vini or Mycoderma cerevisiae any more than it will Penicillium.
The variety R. viscosum glaucum has leaves paler than those of the species; and R. viscosum nitidum, of dwarf, compact growth, has leaves deep green on both sides. R. WILSONI, a cross between R. ciliatum and R. glaucum, is of remarkably neat growth, and worthy of cultivation where small-sized kinds are a desideratum.
It was very soon made out that these yeast organisms, to which Turpin gave the name of Torula cerevisiae, were more nearly allied to the lower Fungi than to anything else. Indeed Turpin, and subsequently Berkeley and Hoffmann, believed that they had traced the development of the Torula into the well-known and very common mould the Penicillium glaucum.
It even happened that the fermentations with the perfectly pure sugar instead of being slow were very active, when compared with those which we had conducted with, the commercial sugar-candy. We may here add a few words on the non-transformation of yeast into penicillium glaucum.
The phenomena are as massive and wide-spread as is anything in Nature, and the study of them is as tedious, repellent and undignified. To reject it for its unromantic character is like rejecting bacteriology because penicillium glaucum grows on horse-dung and bacterium termo lives in putrefaction. Scientific men have long ago ceased to think of the dignity of the materials they work in.
Campbell spoke firmly and kindly to them, and pointed out their incivility and the unfriendly tone of their whole conduct. R. Dalhousiae; 2. R. vaccinioides; 3. R. camelliaeflorwm; 4. R. arboreum. Above 8000 feet: 5. R. argenteum; 6. R. Falconeri; 7. R. barbatum; 8. R. Campbelliae; 9. R. Edgeworthii; 10. R. niveum; 11. R. Thomsoni; 12. R. cinnabarinum; 13. R. glaucum. Above 10,500 feet: 14.
If at any time during fermentation we pour off the fermenting liquid, the deposit of yeast remaining in the vessel may continue there, in contact with air, without our ever being able to discover the least formation of penicillium glaucum in it. We may keep a current of pure air constantly passing through the flask; the experiment will give the same result.
It was very soon made out that these yeast organisms, to which Turpin gave the name of Torula cerevisioe, were more nearly allied to the lower Fungi than to anything else. Indeed Turpin, and subsequently Berkeley and Hoffmann, believed that they had traced the development of the Torula into the well-known and very common mould the Penicillium glaucum.
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