Botánica

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

I

Intine

http://www.zoologie.sbg.ac.at/struktur/abteilung/elektronenmikroskopie/rem99/pollen.htm

Intine: Der innere Teil des Sporoderms; besteht unter anderem aus Cellulose und ist beim Keimen des Pollenschlauchs von Bedeutung.

http://www.bartleby.com/61/24/I0202400.html

Intine NOUN The innermost wall of a spore or pollen grain. Also called endosporium. ETYMOLOGY German, from Latin intus, within.

http://www.biologie.uni-hamburg.de/b-online/e27/2.htm

The exine is composed of nexine and sexine. The cavities of the sexine are filled with pollen cement. The exine consists mainly of sporopollenin while the intine's main component is cellulose.

W

Waldsterben

www.wissen.de

Waldsterben populäre Bezeichnung für neuartige Waldschäden

http://members.eunet.at/robb/rlgw.htm

Waldsterben n. "forest death": the dying of forest ecosystems by acid rain or other forms of pollution, first described in Germany and the former Czechoslovakia.

http://www.ncl.ac.uk/gane/page10.htm

A new term, "Waldsterben", meaning "forest death" came into common use.

X

Xylem

www.wissen.de

Xylem das; griechisch Wasser leitender Gefäßteil des pflanzlichen Leitbündels.

http://www.bartleby.com/61/0/X0010000.html

Xylem NOUN The supporting and water-conducting tissue of vascular plants, consisting primarily of tracheids and vessels; woody tissue. ETYMOLOGY German, from Greek xulon, wood.

http://www.nsci.plu.edu/~jmain/b359web/pages/xylem.htm

Note the primary xylem (next to pith), secondary xylem, and the vascular rays.