Nomina commutata ex: „List of British Seed-plants and Ferns.”︁ 1907
نویسندگان
چکیده
منابع مشابه
Biomechanical and leaf-climate relationships: a comparison of ferns and seed plants.
PREMISE OF THE STUDY Relationships of leaf size and shape (physiognomy) with climate have been well characterized for woody non-monocotyledonous angiosperms (dicots), allowing the development of models for estimating paleoclimate from fossil leaves. More recently, petiole width of seed plants has been shown to scale closely with leaf mass. By measuring petiole width and leaf area in fossils, le...
متن کاملeffect of seed priming and irrigation regimes on yield,yield components and quality of safflowers cultivars
این مطالعه در سال 1386-87 در آزمایشگاه و مزرعه پژوهشی دانشگاه صنعتی اصفهان به منظور تعیین مناسب ترین تیمار بذری و ارزیابی اثر پرایمینگ بر روی سه رقم گلرنگ تحت سه رژیم آبیاری انجام گرفت. برخی از مطالعات اثرات سودمند پرایمینگ بذر را بر روی گیاهان مختلف بررسی کرده اند اما در حال حاضر اطلاعات کمی در مورد خصوصیات مربوط به جوانه زنی، مراحل نموی، عملکرد و خصوصیات کمی و کیفی بذور تیمار شده ژنوتیپ های م...
Euphorbia commutata
citation Penskar, M.R. 2004. Special plant abstract for Euphorbia commutata (tinted spurge). Michigan Natural Features Inventory. Lansing, MI. 3 pp. Copyright 2004 Michigan State University Board of Trustees. Michigan State University Extension is an affirmative-action, equal-opportunity organization. Funding for abstract provided by the National Oceanic and Atmospheric Administration (NOAA) Co...
متن کاملFloral homeotic genes were recruited from homologous MADS-box genes preexisting in the common ancestor of ferns and seed plants.
Flowers sensu lato are short, specialized axes bearing closely aggregated sporophylls. They are typical for seed plants (spermatophytes) and are prominent in flowering plants sensu stricto (angiosperms), where they often comprise an attractive perianth. There is evidence that spermatophytes evolved from gymnosperm-like plants with a fern-like mode of reproduction called progymnosperms. It seems...
متن کاملFERNS AND FERN ALLIES OF IRAN
The pteridophyte account of Flora Iranica (ed. K.H. Rechinger) is still not published. The Caspian forests provide suitable habitats for the growth of many ferns and fern allies in Iran. In semi-arid and mountainous areas of Iran, mesophilous plants are restricted to rock crevices, waterfall proximity, stream banks and lake shores. Based on field collections and study of herbarium specimens in ...
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ژورنال
عنوان ژورنال: Repertorium novarum specierum regni vegetabilis
سال: 1910
ISSN: 0375-121X
DOI: 10.1002/fedr.19100082611