TY - JOURS
T1 - Ranunculus lingua L., der Zungen-Hahnenfuß 
Heinze, Angelika
JAS - Jahr für Goethe.
JF - Jahrbuch für Goetheanismus
PY - 2010
VL - 2010
SP - 41
EP - 62
DO - 10.18756/jfg.2010.41
SN - Print :1866-4830 Online : 2750-2341 
LA - de
N2 - 
N1 - Greater spearwort Ranunculus lingua LRanunculus lingua L is a member of the buttercup family It has petioleless lanceolate leaves and grows in water close to the bank and reaches a height of 15 m Goebel unpublished and SUCHANTKE 2009 have shown that in the genus Ranunculus with its multitude of leaf forms the respective biotopc conditions are reflected in both the plants habit and its leaf forms Ranunculus lingua and some other species of wet habitats appear to contradict this Their narrow pointed leaves would lead one to expect a hot sunny dry habitat because light and heat are regarded as the formative forces of pointed leaves However closer observation of Ranunculus lingua shows that the first leaves after germination as well as the winter leaves that grow under water are rounded and petioled This gives it an openness with respect to water which is lacking in for example R gramineus a dry grassland plant Its leaves are narrow and pointed from the outset The leaf venations of both these species also differ according to their habitats The venation is networked with the aquatic plant and parallel with the dry grassland plant Comparison of these two plants shows that despite similar shapes their typical leaves are not to be treated as equivalent and that they do indeed reflcct their habitats By referring to various plant communities VAHLE 2007 has presented a metamorphic series from those in areas of open water where rounded leaf shoots sprcad out to those with linear leaf forms in tall beds of reeds This kind of metamorphosis is reflected by Ranunculus lingua in the change in shape of its leaves through the seasons The relationship of Ranunculus lingua to its biotope is recognisable not in its typical lanceolate leaf but primarily in its overall leaf metamorphosis
AB - 
ST - Ranunculus lingua L., der Zungen-Hahnenfuß 
UR - https://dx.doi.org/10.18756/jfg.2010.41
Y2 - 2024-05-16 10:19:06
ER -