File:Goldfish breeds and other aquarium fishes, their care and propagation - a guide to freshwater and marine aquaria, their fauna, flora and management. With 280 explanatory illustrations, printed with (14763213591).jpg

Identifier: goldfishbreedsot00wolf (find matches)
Title: Goldfish breeds and other aquarium fishes, their care and propagation : a guide to freshwater and marine aquaria, their fauna, flora and management. With 280 explanatory illustrations, printed with the text
Year: 1908 (1900s)
Authors: Wolf, Herman Theodore, 1855-
Subjects: Aquariums Goldfish
Publisher: Philadelphia : Innes & sons
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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Flexible Nitella growsto a length of 20 to 30 inches in deep water andhas a very slender erect and flexible stem withheavy and long threadlike node-bearing leafletseither single or divided into two abruptly pointedsegments. The spores or fruitlets are formed inthe middle of the branching leaves. Common instreams and still water. Nitella gracilis (Sm.) or Slender Nitella,Fig. 122, is more hairlike than the above with thenodes more widely separated and the leaflets some-what shorter. The spores are formed in the axilsof the branching leaves. Usually to be found inponds and streams. Morris Pond and SchuylkillRiver. A desirable aquarium plant. Nitella tenuissima (Desv.) or ClusteredNitella has very slender 2 to 6 inch long spar-ingly branched stems and leaves in close verticils,three or four times divided, with the first segmentthe longer. Native in New York, New Jersey,Rhode Island and Michigan. Char a coronata (Ziz.) or Crowned Chara, is alarge Ceratophyllum-like aquatic, growing to 18
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FIG. 121. Characex. Reduced one-third. 1. Chara coronata. 2. Nitella flexilis. 3. Chara gymnopus. 4. Chara crinita. 5. Nitella tenuissima. 6. Nitella gracilis.Reduced one-third. I94 AQUATIC PLANTS OF FRESHWATER and 20 inches in length, having a tufted stem from a single root. Thejointed capillary leaves are often 1 y2 to 2 inches long and form in whorls of 8 to II. Quite common throughout Americaon a sandy soil in shallow ponds and streams.This plant is sometimes mistaken for Cerato-phyllum, but does not form the thick branch-ing clusters of the latter plant. Chara gymnopus (A. Br.) or Elegant Charais a slender hairy-stemmed plant growing to alength of 2 feet in deep water and having theverticils of many-celled capillary leaves sur-rounded by a whorl of stipules. Each leafusually bears three spores. This beautifulspecies is not uncommon, new localities comingconstantly into notice. Chara crinita (Wallr.) or Crumpled Charasomewhat resembles N. tenuissima and hasrigid and erect stems an

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