0000000000315605
AUTHOR
Albrecht Siegert
Wuchsform und Organisation vonMonsonia nivea (Geraniaceae) unter besonderer Ber�cksichtigung der Blattstieldornen
Monsonia nivea is a hemicryptophyte which shows spiny petioles after the loss of leaf blades. Anthocladial inflorescences and their supporting vegetative parts are spineless. Spines are formed only by vigorous rosettes. Similar spiny petioles can be found in all other genera of the tribeGeranieae.
Zur Bewertung der Blattdornen vonHalimodendron halodendron (Fabaceae)
Halimodendron halodendron is a spiny shrub of north-western Asia. The spines are formed by the rachises of the paripinnate leaves. After abscission of pinnae the rigid rachises remain for several years. In culture these rachis spines do not develop fully.