The Johns Hopkins University Studies in Geology Volume 1-2

The Johns Hopkins University Studies in Geology Volume 1-2

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922 edition. Excerpt: ...of small size, nearly orbicular in outline, greatly compressed, pedunculate, obliquely cuspidate tipped, single seeded. Length, about 1 cm. from the top of the recurved cuspidate tip to the top of the peduncle. Horizontal diameter, about 8 mm. Peduncle stout, about 4 mm. long. Seed lenticular, nearly orbicular, compressed, about 4 mm. in diameter. Pod tardily, if at all, dehiscent; its surface minutely wrinkled. The present species is somewhat smaller than the normal size of the pods in the existing species which I have seen, and it is also smaller than those of the described fossil species. It may represent the fruit of the same tree as the leaflets from Potosi described as Copaifera potosiana since it occurs also at Potosi in association with the latter. The genus is present in the recent flora of South America from the Caribbean region throughout the Amazon Basin and several species are known from the Yungas region of Bolivia. Genus Peltophorum Vogjx Peltophorum membranaceum Enghxhardt Peltophorum membranaceum Engelhardt, Sitz. Naturw. Gesell. Isis in Dresden, 1894, Abh. 1, p. 9, pi. 1, fig. 47. Berry, Proc. U. S. Natl. Mus., vol. 54, p. 145, pi. 17, fig. 3, 1917. Description.--Leaflets small, sessile, inequilateral, ovate in general outline, with a bluntly pointed apex and an obliquely cuneate base. Margins entire. Length, about 8 mm. Maximum width, in the middle part, about 3.5 mm., one side one-third wider than the other. Midrib mediumly stout, curved proximad. Secondaries thin, about three ascending camptodrome pairs. This species was described from Potosi by Engelhardt, and was collected in 1919 from both Corocoro and Potosi. The peculiar outline serves to readily distinguish it from the other members of the flora. It has been compared...show more

Product details

  • Paperback | 60 pages
  • 189 x 246 x 3mm | 127g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236642856
  • 9781236642851