Contributions, Brooklyn Botanic Garden

Contributions, Brooklyn Botanic Garden

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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. 1921 edition. Excerpt: ..." represents a more stable form, i.e. less given to reversion. Whitmani-compacta is a trifle smaller than its parent form, and has a fuller leaf with more expanded segments. Goodi and Gracillima (PLATE II, FIG. 4; PLATE 12, FIG. 5) are apparently separate occurrences of the same variety, entirely thrice-pinnate, and with smaller segments than Whitmani. It may represent a dwarfing. Magnifica (PLATE 10, FIG. 4; PLATE II, FIG. 5) is clearly four times pinnate, and represents the greatest amount of division which can be definitely stated to have been evolved in this particular series. Elmsfordi (PLATE 12, FIG. 7), a reputed spore sport, looks much like a miniature Whitmani, being less than half its size. It is different in another particular, in that it produces a much greater number of leaves to each crown, and in a given size pot. A plant grown to full size in a four-inch pot may show as many as a hundred leaves. In a twelve-inch pan, an estimate of a thousand leaves appeared conservative. The other progressive sports in the Piersoni line are sufficiently described for the present by the typography of the chart and by the figures in plates 10-12. The other reputed bostoniensis sport from which further progressive variations in the line of division are believed to have come is Amerpohli, a thrice-pinnate variety. Amerpohli in leaf division is very like magnifica, and in growth habit and carriage of the leaf it is also similar. Because of this close resemblance it is more than reasonable to suggest that it may really have come from Whitmani as a sport and that its reputed origin from var. bostoniensis may be an error. From Amerpohli, the four times pinnate form, Smithi, is said to have come. There is some question as to the correctness...
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Product details

  • Paperback | 182 pages
  • 189 x 246 x 10mm | 336g
  • United States
  • English
  • black & white illustrations
  • 1236872975
  • 9781236872975