Leaf Form Evolution inViburnumParallels Variation within Individual Plants

2018 ◽  
Vol 191 (2) ◽  
pp. 235-249 ◽  
Author(s):  
Elizabeth L. Spriggs ◽  
Samuel B. Schmerler ◽  
Erika J. Edwards ◽  
Michael J. Donoghue
Keyword(s):  
Leaf Form

On the Adaptive Significance of Leaf Form

1979 ◽  
pp. 375-407 ◽  
Author(s):  
Thomas Givnish
Keyword(s):  
Adaptive Significance ◽  
Leaf Form

scholarly journals Leaf-form characteristics of plants inQuercus aquifolioidescommunity along an elevational gradient on the Balang Mountain in Wolong Nature Reserve, Sichuan,China

2013 ◽  
Vol 33 (22) ◽  
pp. 7148-7156 ◽  
Author(s):  
刘兴良 LIU Xingliang ◽  
何飞 HE Fei ◽  
樊华 FAN Hua ◽  
潘红丽 PAN Hongli ◽  
李迈和 LI Maihe ◽  
...  
Keyword(s):  
Nature Reserve ◽  
Elevational Gradient ◽  
Leaf Form ◽  
Wolong Nature Reserve

Leaf architecture of terrestrial and epiphytic ferns from an Araucaria forest in southern Brazil

Botany ◽  
2013 ◽  
Vol 91 (11) ◽  
pp. 768-773 ◽  
Author(s):  
L. Larcher ◽  
M.R.T. Boeger ◽  
P. Soffiatti ◽  
T.I. Da Silveira
Keyword(s):  
Plant Architecture ◽  
Mechanical Design ◽  
Light Interception ◽  
Leaf Position ◽  
Southern Brazil ◽  
Leaf Architecture ◽  
Leaf Form ◽  
Araucaria Forest ◽  
Maximum Light ◽  
Rigid Structure

Studies of angiosperms have associated the mechanical design of petioles with leaf form and the occurrence of simple and compound leaves. Petiole anatomy can respond differently, according to different leaf forms, to maintain plant architecture. The present study evaluated whether this premise applies to fern leaf architecture. Leaves of five ferns (Blechnum binervatum (Poir.) C.V. Morton & Lellinger, Ctenitis falciculata (Raddi) Ching, Megalastrum connexum (Kaulf.) A.R. Smith & R.C. Moran, Microgramma squamulosa (Kaulf.) de la Sota, and Serpocaulon catharinae (Langsd. & Fisch.) A.R. Sm.) from a remnant of an Araucaria Forest in southern Brazil were collected and their morphological and anatomical traits were analyzed. Results indicate that the biomechanical patterns of these terrestrial and epiphytic ferns are similar to those reported for angiosperms, except for the presence of subepidermal sclerenchyma in fern petioles. Independently of leaf form, the rigid structure of fern petioles appears to be an important adaptation to biomechanically support leaf position for maximum light interception in forest understories.

CYTOKININ-GIBBERELLIN REGULATION OF SHOOT DEVELOPMENT AND LEAF FORM IN TOBACCO PLANTLETS

1973 ◽  
Vol 60 (6) ◽  
pp. 491-495 ◽  
Author(s):  
Alvin L. Engelke ◽  
Hamzi Q. Hamzi ◽  
Folke Skoog
Keyword(s):  
Shoot Development ◽  
Leaf Form

Morphological analysis of the Grevillea ilicifolia complex (Proteaceae) and recognition of taxa

2004 ◽  
Vol 17 (3) ◽  
pp. 327 ◽  
Author(s):  
Trisha L. Downing ◽  
Marco F. Duretto ◽  
Pauline Y. Ladiges
Keyword(s):  
Arid Regions ◽  
Morphological Analysis ◽  
Spanning Trees ◽  
New South ◽  
South Australia ◽  
Minimum Spanning Trees ◽  
Leaf Form ◽  
South Wales ◽  
Western Victoria ◽  
Lobed Leaf

A morphological study of herbarium and field-collected specimens, using phenetic techniques of agglomerative classification, ordination and minimum spanning trees, and covering the geographic range of the Holly Grevillea, G.�ilicifolia (R.Br.) R.Br. sensu lato, has resulted in the recognition of three species and four subspecies. The taxa are based on leaf form, noted by previous authors to be highly variable between populations. The taxa recognised here are G.�ilicifolia, G.�ilicifolia subsp. ilicifolia (typical, kite-shaped leaf form), G.�ilicifolia subsp. lobata (F.Muell.) T.L.Downing comb. et stat. nov. (oak-shaped leaf form), G.�dilatata (R.Br.) T.L.Downing comb. et stat. nov. (fan-shaped leaf form), G.�angustiloba (F.Muell.) T.L.Downing comb. et stat. nov., G.�angustiloba subsp. angustiloba (narrow-lobed leaf form) and G.�angustiloba subsp. wirregaensis T.L.Downing subsp. nov. (very narrow-lobed leaf form). The rank of subspecies is used where there are some intermediate plants between forms. Grevillea ilicifolia subsp. ilicifolia is the most widespread taxon and occurs in South Australia, western Victoria and in two localities in New South Wales. Grevillea angustiloba subsp. wirregaensis has the most restricted range, occurring in semi-arid regions near Wirrega in South Australia. Grevillea dilatata is largely endemic to Kangaroo Island, South Australia.

scholarly journals Genetic Analysis of Mutations at Loci Controlling Leaf Form in Cowpea (Vigna unguiculata [L.] Walp.)

2001 ◽  
Vol 92 (1) ◽  
pp. 43-50 ◽  
Author(s):  
I. Fawole
Keyword(s):  
Genetic Analysis ◽  
Vigna Unguiculata ◽  
Leaf Form
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