The Ohio Naturalist, vol. II, no. 2, December, 1901Ohio State University. Biological Club
History
The Ohio Naturalist, vol. II, no. 2, December, 1901
Ohio State University. Biological Club
Natural history -- Ohio -- Periodicals; Natural history -- Periodicals; Science -- Periodicals
_Item 1._ It has been asked how many species of plants occur in Ohio.
Only a guess can at present be made. In the Catalogue of Ohio Plants, by
Kellerman and Werner, prepared in 1893, there were listed 1,925
Spermatophytes, 68 Pteridophytes, 335 Bryophytes, and 1,400
Thallephytes. The Fourth Catalogue, by the writer, published in 1899,
gave 2,025 species of Pteridophytes and Spermatophytes. While many
additions to the previous list were included, very many species formerly
reported were excluded because unauthenticated by herbarium specimens,
and others were undoubtedly extra-limital for Ohio. Two Annual
Supplements to this catalogue have been issued, bringing the number of
species of the vascular plants, nearly all authenticated, up to about
2,150. The mosses, the higher fungi and the lichens have been listed
with some degree of fullness, but most of the other lower plants have
been very incompletely placed on record, though large collections, only
partially worked up as yet, are now in the herbarium of the State
University.
_Item 2._ Miss Ruth E. Brockett, of Rio Grande, Gallia County, Ohio, has
found the Showy Skullcap, Scutellaria serrata Andr., previously
unreported for this State. The distribution, as given in Britton’s
Flora, is New York and Pennsylvania to North Carolina, Illinois and
Kentucky. In the Rio Grande region many interesting or new plants for
the Ohio list have hitherto been detected by Miss Brockett, as the
Fringe Tree (Chionanthus virginica), the Purplish Buckeye (Aesculus
octandra hybrida), and others too numerous to mention.
_Item 3._ An interesting and suggestive study has been published by
Herman Dingler (Muenchen) on the organs for wind-dispersal (flug-organe)
in the Vegetable Kingdom. The title of the book is “Ein Beitrag zur
Physiologie der passiven Bewegungen im Pflanzenreich.” After describing
fully the mechanics involved, and the methods of investigation, the
author enumerates the _Chief Types_ of the flight organs as follows
(prefixing to the word “flyer” the descriptive words, 1, dust; 2,
granule; 3, bubble; 4, hair; 5, pan; 6, umbrella; 7, sail; 8,
disk-twist; 9, barrel-twist; 10, plain-twist; 11, screw, and 12,
screw-twist):
I. Group.
1. Staubflieger, e. g. Micrococcus, Puffball, Spores of Mosses,
Pollen.
2. Körnchenflieger, e. g. Poppy, Species of the Pink Family,
Orobanchaceæ.
3. Blasenflieger, e. g. Ironwood (Ostrya), Valerianella, Rhus
cotinus.
4. Haarflieger, e. g. many Bromeliaceæ, Pitcairnia, etc.
5. Napfflieger, e. g. Wafer Ash (Ptelea trifoliata), Cochleospermum.
6. Schirmflieger, e. g. the Compositæ, Milkweeds (Asclepiadaceæ),
Willows.
II. Group.
7. Segelflieger, e. g. Cross-vine and seeds of other Bignoniaceæ.
III. Group.
8. Scheibendrehflieger, e. g. flattened seeds of the Iris, and Lily
families.
Public-domain text, read in full here on John Shaqi.
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