Hieracium maccoshiana, a new Scottish hawkweed related to H. dovrense (Section Alpestria, Asteraceae)
نویسنده
چکیده
A new species of hawkweed Hieracium maccoshiana T.C.G.Rich sp. nov. is described. It is related to the Norwegian Hieracium dovrense Fr., but differs in the shape and toothing of the stem leaves and in having glabrous-tipped ligules. It is endemic to the county of Sutherland, Scotland where it has been recorded from four sites. A lectotype of Hieracium dovrense is designated.
منابع مشابه
Hieracium sinoaestivum (Asteraceae), a new species from North China
Hieracium sinoaestivum Sennikov sp. nov. is described as new to science and illustrated. This presumably apomictic species is solely known from two old collections made in a single locality in the Shanxi Province of China. It belongs to the hybridogenous group Hieracium sect. Aestiva (Hieracium sect. Prenanthoidea × Hieracium sect. Umbellata) and is most similar to Hieracium veresczaginii from ...
متن کاملResponse of Hieracium in Two Long Term Manipulative Agricultural Trials
Hieracium, or hawkweed species, serious weeds in South Island high country, may be controlled by appropriate pastoral management. Experimental trials at Lake Tekapo, related to S and P fertiliser rates of 0-100 kg ha-l yr-l, 27 different combinations of over-drilled and resident species and different seasons or intensities of grazing treatments on Hieracium dominated fescue tussock were conduct...
متن کاملیک گونه جدید و یک گزارش جدید ازجنس Hieracium در ایران
گونه H. piranshahricum به عنوان گونه جدید از ایران معرفی میگردد. این گونه متعلق به بخش sect. Pratensina و زیر بخش subsect. Pratenses است و با گونه H. longiscapum قرابت زیادی دارد. در گونه H. longiscapum ساقه با کرکهای ستارهای و غدهای، دمگل آذین و برگههای گریبان با کرکهای غدهای، تعداد برگهای قاعدهای 2-4 و مستطیلی، برگهای ساقهای 1 (-2)، تعداد کپههای گل آذین 2-10، برگهای ناحیه گل آذین...
متن کاملControl of Orange Hawkweed (Hieracium aurantiacum) in Southern Alaska
Orange hawkweed is a perennial European plant that has colonized roadsides and grasslands in south-central and southeast Alaska. This plant is forming near-monotypic stands, reducing plant diversity, and decreasing pasture productivity. A replicated greenhouse study was conducted in 2006 and repeated in 2007 to determine the efficacy of six herbicides (aminopyralid, clopyralid, picloram, piclor...
متن کامل