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NEW RECORD OF RICCIA PSEUDO-FROSTII (RICCIACEAE) FOR THE BRYOFLORA OF IRAN | ||
| The Iranian Journal of Botany | ||
| مقاله 9، دوره 22، شماره 1، آبان 2016، صفحه 33-38 اصل مقاله (623.81 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22092/ijb.2016.106634 | ||
| نویسنده | ||
| Razieh Taghavizad* | ||
| Department of Biology, Yadegar -e- Imam Khomeini (RAH) Shahre-Rey Branch, Islamic Azad University, Tehran, Iran. | ||
| چکیده | ||
| Morphological and anatomical studies indicate interspecific differences with the existing samples which demonstrate a new record in Iran. Riccia pseudo-frostii was seen on the western parts of Mazandaran in the North of Iran. This species was distributed often on the wet soils understory of gardens containing high calcium and magnesium which formed community with Marchantia polymorpha and Funaria sp. Thallus is averagely dichotomously two or three times divided and has apical notch with rosette and regular discoidal shape. The young thallus base is tinged purple and is monoecious with less antheridium frequency in comparison with archegonium and is hairless. In many of samples there are not scales on the ventral surface. Tetragonal spores with average diameter 70 μm are regularly reticulated surface and the length of wings reach to 4 μm. The average diameter of pores, lumens and odontos were determined 5 μm, 5–7 μm, and 2 μm, respectively. There are two types of smooth and tuberculate rhizoids in the species. | ||
| کلیدواژهها | ||
| Bryoflora؛ tetragonal spores؛ tuberculate rhizoid؛ north of Iran | ||
| عنوان مقاله [English] | ||
| گزارش جدید Riccia pseudo- frostii، تیره Ricciaceae برای فلور خزه گیان ایران | ||
| نویسندگان [English] | ||
| راضیه تقوی زاد | ||
| استادیار،گروه زیست شناسی، واحد یادگار امام خمینی (ره) شهرری، دانشگاه آزاد اسلامی، تهران، ایران | ||
| چکیده [English] | ||
| بررسی های ریخت شناختی و تشریحی حاکی از تفاوت های بین گونه ای با نمونه های موجود و اثبات رکورد جدید در ایران است. گونه Riccia pseudo- frostii در بخش غربی استان مازندران در شمال ایران مشاهده شد. این گونه بر روی خاک های مرطوب باغها با کلسیم و منیزیوم زیاد دیده شد و با گونه هایFunariaو Marchantiaتشکیل جوامعی را داده اند. تال به طور متوسط دو تا سه بار دیکوتومی شده، در انتها شکاف دار با شکل کلی رزت و دیسکوئیدی منظم است. قاعده تال جوان، ارغوانی کم رنگ، تک پایه و با فراوانی کمتر آنتریدی نسبت به آرکگن و فاقد مو است. سطح شکمی اکثرا فاقد فلس است. اسپورها چهار وجهی با میانگین قطر mμ70 با آراستار مشبک منظم هستند و بال به طول mμ4 میرسد. میانگین قطر منفذها mμ5، حفره ها mμ7-5 و دندانه ها mμ2 تعیین شد. ریزویید بر دو نوع صاف و زگیل دار است. | ||
| کلیدواژهها [English] | ||
| Bryoflora, tetragonal spores, tuberculate rhizoid, north of Iran | ||
| مراجع | ||
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