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The North American Slime-Moulds: A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital SpeciesMacbride, Thomas H. (Thomas Huston)

Science

The North American Slime-Moulds: A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species

Name: The North American Slime-Moulds: A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species
Author: Macbride, Thomas H. (Thomas Huston)

Macbride, Thomas H. (Thomas Huston)

Myxomycetes

Sporangia gregarious, seldom erect, usually inclined, curved or nodding,
dark brown, becoming violet, cylindric, acuminate-obtuse, stipitate;
stipe about half the total height, 2-2-1/2 mm., black, polished, even;
hypothallus well developed, brown, continuous; columella black, tapering
gradually, and attaining almost the summit of the sporangium;
capillitium dense, of flexuous tawny threads which, by repeated
branching, form an intricate network, the free extremities numerous,
short, and pale; spores dark violaceous, distinctly warted, 7.5-8  mu.

A very graceful, elegant species, related to _C. pulchella_ and _C.
persoonii_, but distinct by its much greater size and smaller spores.
The specimens before show us the perfection of beauty in this genus;
the polished stipe, the symmetrical capillitium, the soft purple-brown
tints, are remarkable, and enable one to recognize the form at sight.

Specimens from Oregon are unusually fine; larger than usual, reach 7 mm.
total height, and when blown out present the tints of violet in unusual
clearness; var. _C. pacifica_. Plate XVIII., Figs. 13, 13_a_, and 13_b_.

New York, Pennsylvania, Ohio, Illinois; Oregon, _Professor Peck._


10. COMATRICHA TYPHOIDES (_Bull._) _Rost._

PLATE VI., Figs. 1, 1 _a_, 1 _b_.

  1772. _Mucor stemonitis_ Scopoli, _Fl. Carn._, II., pp. 493-494 (?).
  1774. _Mucor stemonitis_ Schaeffer, _Icones. Tab._, CCXCVII (?).
  1780. _Stemonitis typhina_ Wiggers, _Prim. Fl. Hols._, p. 116 (?).
  1791. _Trichia typhoides_ Bulliard, _Champ. de la France_, p. 119,
           t. 477, II.
  1796. _Stemonitis typhina_ Persoon, _Myc. Obs._, I., p. 57, in part.
  1805. _Stemonitis typhoides_ (Bull.) D. C., _Fl. Fr._, p. 257.
  1829. _Stemonitis typhoides_ (Bull.) Fr., _Syst. Myc._, III., p. 158.
  1873. _Comatricha typhoides_ (Bull.) Rost., _Vers._, p. 7.
  1875. _Comatricha typhina_ (Pers.) Rost., _Mon._, p. 197.
  1895. _Comatricha stemonitis_ (Scop.) Sheldon, _Minn. Bot. Stud._,
           p. 473.
  1899. _Comatricha stemonitis_ (Scop.) Sheld., Macbr., _N. A. S._,
           p. 130.
  1911. _Comatricha typhoides_ Rost., List., _Mycetozoa, 2nd ed._,
           p. 157.

Public-domain text, read in full here on John Shaqi.

Opening the text

Science

The North American Slime-Moulds: A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species

Macbride, Thomas H. (Thomas Huston)

Myxomycetes

Sporangia gregarious, seldom erect, usually inclined, curved or nodding,
dark brown, becoming violet, cylindric, acuminate-obtuse, stipitate;
stipe about half the total height, 2-2-1/2 mm., black, polished, even;
hypothallus well developed, brown, continuous; columella black, tapering
gradually, and attaining almost the summit of the sporangium;
capillitium dense, of flexuous tawny threads which, by repeated
branching, form an intricate network, the free extremities numerous,
short, and pale; spores dark violaceous, distinctly warted, 7.5-8  mu.

A very graceful, elegant species, related to _C. pulchella_ and _C.
persoonii_, but distinct by its much greater size and smaller spores.
The specimens before show us the perfection of beauty in this genus;
the polished stipe, the symmetrical capillitium, the soft purple-brown
tints, are remarkable, and enable one to recognize the form at sight.

Specimens from Oregon are unusually fine; larger than usual, reach 7 mm.
total height, and when blown out present the tints of violet in unusual
clearness; var. _C. pacifica_. Plate XVIII., Figs. 13, 13_a_, and 13_b_.

New York, Pennsylvania, Ohio, Illinois; Oregon, _Professor Peck._


10. COMATRICHA TYPHOIDES (_Bull._) _Rost._

PLATE VI., Figs. 1, 1 _a_, 1 _b_.

  1772. _Mucor stemonitis_ Scopoli, _Fl. Carn._, II., pp. 493-494 (?).
  1774. _Mucor stemonitis_ Schaeffer, _Icones. Tab._, CCXCVII (?).
  1780. _Stemonitis typhina_ Wiggers, _Prim. Fl. Hols._, p. 116 (?).
  1791. _Trichia typhoides_ Bulliard, _Champ. de la France_, p. 119,
           t. 477, II.
  1796. _Stemonitis typhina_ Persoon, _Myc. Obs._, I., p. 57, in part.
  1805. _Stemonitis typhoides_ (Bull.) D. C., _Fl. Fr._, p. 257.
  1829. _Stemonitis typhoides_ (Bull.) Fr., _Syst. Myc._, III., p. 158.
  1873. _Comatricha typhoides_ (Bull.) Rost., _Vers._, p. 7.
  1875. _Comatricha typhina_ (Pers.) Rost., _Mon._, p. 197.
  1895. _Comatricha stemonitis_ (Scop.) Sheldon, _Minn. Bot. Stud._,
           p. 473.
  1899. _Comatricha stemonitis_ (Scop.) Sheld., Macbr., _N. A. S._,
           p. 130.
  1911. _Comatricha typhoides_ Rost., List., _Mycetozoa, 2nd ed._,
           p. 157.

Public-domain text, read in full here on John Shaqi.

The North American Slime-Moulds: A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species

The North American Slime-Moulds: A Descriptive List of All Species of Myxomycetes Hitherto Reported from the Continent of North America, with Notes on Some Extra-Limital Species

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