NUTLET MICROMORPHOLOGY IN SELECTED SPECIES OF NEPETA L. (LAMIACEAE) IN KASHMIR HIMALAYA

Document Type : Research Paper

Authors

Membership of scientific board / Department of Botany, University of Kashmir, Srinagar - 190006, India

Abstract

The nutlet micromorphology of thirteen species of Nepeta was investigated by scanning electron microscopy. Two main patterns i.e. reticulate and indistinct reticulate are described. Both patterns are of smooth type. Reticulate type is found in both Kashmir and Ladakh regions of the study area and indistinct reticulate type is exclusively confined to cold desert region of Ladakh. The nutlets of N. govaniana are largest and that of N. raphanorhiza are smallest among the species studied. Out of 13 studied species, 11 belong to reticulate type and 2 belong to indistinct reticulate. Only smooth pattern is found in our species and no sculptured pattern is recognised.

Keywords

Article Title [Persian]

ریزرخت‌شناسی فندقه‌های گونه‌هائی منتخب از جنس Nepeta L. (Lamiaceae)در منطقه کشمیر هیمالیا

Authors [Persian]

  • توحیدا حسن
  • غلام حسن‌دار
عضو هیئت علمی / دپارتمان گیاهشناسی دانشگاه کشمیر، هندوستان
Abstract [Persian]

ریزریخت‌شناسی فندقه 13 گونه از جنس Nepeta  با استفاده از میکروسکوپ الکترونی اسکن مورد بررسی قرار گرفت و دو الگوی مشبک و مشبک نامشخص تشخیص داده شد که هر دو الگو از نوع صاف بودند. الگوی مشبک در هر دو منطقه کشمیر و لاداخ و الگوی مشبک نامشخص فقط در بیابانهای سرد منطقه لاداخ مشاهده گردیدند. فندقه‌های گونه Nepeta govaniana بزرگترین و فندقه‌های گونه N. raphanorhiza جزو کوچک‌ترین فندقه‌ها بودند. از بین 13 گونه مطالعه شده 11 گونه از الگوی مشبک و 2 گونه از الگوی مشبک نامشخص بودند و از طرف دیگر فندقه‌ها از نوع صاف و بدون تزیینات تشخیص داده شدند.

Keywords [Persian]

  • Nepeta
  • Lamiaceae
  • nutlet
  • macromorphology
  • micromorphology

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The Iranian Journal of Botany
Volume 18, Issue 2 - Serial Number 2
December 2012
Pages 262-269

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History

  • Receive Date: 11 March 2012
  • Revise Date: 10 September 2012
  • Accept Date: 07 November 2012

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