Bulletin - University of Hawaii, Agricultural Experiment Station Volume 22-35

Bulletin - University of Hawaii, Agricultural Experiment Station Volume 22-35

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911 edition. Excerpt: ...are at least four in common use, three of which have been extensively used in hybridizing. H. rosasinensis is the species to which the vast majority of cultivated hibiscus is related. H. schizopetalus, commonly known as the coral hibiscus, has been used in many crosses as a male parent. The Narrow Petal white is a distinct species of hibiscus introduced from Fiji, which readily crosses with the other forms of hibiscus in Hawaii. H. mutabilis is widely cultivated in Hawaii for its white flowers which crimson during the day, but has not been used successfully in crossing with other forms of hibiscus. GENERAL CHARACTERISTICS OF HIBISCUS FLOWERS. The flower of hibiscus is arranged on the plan of fives. In all single flowers of hibiscus there are five petals, separate to the base, or nearly so; five stigmatic branches of the long style; five cells in the ovary; five teeth on the limb of the calyx; and in some of the simpler flowers five or ten involucral bracts. The same statement is true for double flowers, except that in double flowers the staminal column is modified into an indefinite and usually large number of petals. In all species and varieties of hibiscus in Hawaii, with the exception of the native white and coral hibiscus, the petals are united with the column for only a very short distance, usually not more than onequarter inch above the ovary. In the native white and coral flowers the petals are united with the column for a length of an inch or more. This is also true with all the crosses in which native whites and coral are used as one parent. In the descriptive list of hibiscus given in this bulletin the term column is used to mean the staminal column. The filaments of the column in the hibiscus flower are united into a hollow...
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Product details

  • Paperback | 166 pages
  • 189 x 246 x 9mm | 308g
  • United States
  • English
  • black & white illustrations
  • 123696487X
  • 9781236964878