The Anatomy and Morphology Cushion Species Tasmanian

نویسنده

  • Neil Gibson
چکیده

A study of the anatomy and morphology of four Tasmanian cushion plant showed that anatomical convergence was not as well developed as the obviolls morphological convergence. The of well-developed xeromorphic features in the Tasmanian species is not consistent with the hypothesis previollsly suggesrcd that the cilshion fonn evolved plimarily as a strategy to maintain a positive water balance.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Lepidodendron hickii and Generic Delimitation in Carboniferous Lepidodendrid Lycopods

Lepidodendron hickii is tlie only anatomically preserved Carboniferous lepidodendrid with leaf cushions referable to the compression-based L. aculeatum, the type of Lepidodendron. Historically Lepidodendron has come to encompass several kinds of arborescent lycopods with distinctive vegetative and reproductive morphologies, among which no truly intermediate forms are known. These include totall...

متن کامل

A TAXONOMIC STUDY OF CORYDALIS SUBGENERA AND SECTIONS IN IRAN USING ANATOMIC AND POLLEN CHARACTERISTICS

The stem anatomy and pollen morphology of Iranian members of the genus Corydalis (except C. seisumsiana in pollen morphology) were studied using light and SEM microscopy. The results verified the argument that the tuberous sections of Corydalis, including Radix-cava, Corydalisand Leonticoides could be classified in a single subgenus as a natural grouping. The study also revealed that the specie...

متن کامل

A Revision of the Tasmanian Freshwater Crayfish Genus Astacopsis Huxley (decapoda: Parastacidae)

During a broad study of the biology of the freshwater in rhe Tasmanian genus fWO distinct forms of Astacopsis franklinii were recognised. These "forms" were found to diffcr in terms of their general morphology and distribution. As a result, the taxonomy of Astacopsis has been revised to re-establish the three species originally described by Ellen Clark. Astacopsis franklinii Gray has been divid...

متن کامل

Leaf and peduncle anatomy of some species of the genus Pterocephalus (Caprifoliaceae) from Iran

Pterocephalus (Caprifoliaceae) consists of 30 species worldwide, mainly distributed in the temperate regions of the northern hemisphere, of which 14 species were reported from Iran, including five endemic ones. In this study, 35 leaf-related traits and 30 peduncle-related traits were investigated by light microscopy of 15 samples from 11 Iranian species of Ptreocephalus. Our results showed that...

متن کامل

The submandibular salivary gland microscopic morphology of the adult African giant pouched rat (Cricetomys gambianus, waterhouse-1840)

BACKGROUND: In the present study, the submandibularsalivary gland microscopic morphology of the adult Africangiant pouched rat was investigated. This study was carried out toprovide the basic histology of this organ in the giant pouched rat,to accompany the dearth of information of its microscopicarchitecture in the available literature. This becomes of evenhigher importance when considering th...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012