Tomentaurum (Asteraceae: Astereae), a new genus of goldenaster from Chihuahua, Mexico
نویسندگان
چکیده
منابع مشابه
Dysaster cajamarcensis, a new shrubby genus and species of Astereae (Asteraceae) from Peru
Dysaster cajamarcensis is a spreading broad-leaved shrub named as a new genus and species of the tribe Astereae subtribe Hinterhuberinae collected in northern Peru. It has bisexual disc florets, disc style branches with strong stigmatic lines and hairy appendages, compressed achenes in both ray and disc florets, and papyraceous involucral bracts.
متن کاملLettowia, a new genus of Vernonieae from East Africa (Asteraceae)
A new genus, Lettowia H. Rob. & Skvarla is named for the single East African species originally described as Vernonia nyassae Oliv. Its pollen is lophate and triporate, with a perforated tectum restricted to the muri. The new genus is placed near Vernoniastrum in the subtribe Erlangeinae.
متن کاملZyzyura, a new genus of Eupatorieae (Asteraceae) from Belize
A new Genus, Zyzyura is named to accommodate Fleischmannia mayana Pruski that has an eximbricate involucre, a high-conical receptacle, a corolla with a slender base closely investing the style and with a broadly campanulate limb, enlarged elongate cells in the carpopodium, short and broad distally protruding cells in the corolla lobes, and broad rounded anther appendages.
متن کاملPerymenium Vandevenderorum ( Asteraceae ) , a New Species from Sonora , Mexico
A novel species of Perymenium from Sonora, Mexico is described. It appears to be closest to P. nesomii from southwestern Chihuahua, with which it is compared. A map showing distribution of the two taxa is provided.
متن کاملManganese minerals in geodes from Chihuahua, Mexico
Seven manganese minerals have been observed in geodes from Chihuahua, Mexico. Ramsdellite occurs in a number of different habits, but the morphology and precession X-ray patterns suggest that it is pseudomorphous after groutite. Pyrolusite is found only in association with ramsdellite and is believed to be an alteration product of that mineral. Todorokite generally occurs as a late-stage fibrou...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Phytologia.
سال: 1991
ISSN: 0031-9430
DOI: 10.5962/bhl.part.12205