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Table 2 Comparison of the leaf anatomy in three taxa

From: Micro-morphological study of Evolvulus spp. (Convolvulaceae): the old world medicinal plants

Plant taxa E. alsinoides var. decumbens (KK & PT 12) E. alsinoides var. decumbens (KK & PT 13) E. glomeratus ssp. grandiflorus E. nummularius
Characters
Leaf epidermis
 Adaxial surface
  Cell shape Polygonal Polygonal Polygonal Polygonal
  Anticlinal cell wall Sinuous or straight to curved Sinuous or straight to curved Sinuous or straight to curved Sinuous or straight to curved
  Stomatal type Anisocytic, anomocytic and paracytic Anisocytic, anomocytic and paracytic Anisocytic, anomocytic and paracytic Anisocytic, anomocytic and paracytic
  Y-shaped hairs Present Absent Present Absent
  Capitate gland Present Present Present Present
 Abaxial surface
  Cell shape Polygonal Polygonal Polygonal Polygonal
  Anticlinal cell wall Sinuous or straight to curved Sinuous or straight to curved Sinuous or straight to curved Sinuous or straight to curved
  Stomatal type Anisocytic, anomocytic and paracytic Anisocytic, anomocytic and paracytic Anisocytic, anomocytic and paracytic Anisocytic, anomocytic and paracytic
  Y-shaped hairs Present Present Present Absent
  Capitate gland Present Present Present Present
Leaf transverse section
 Epidermal layer Single layer Single layer Single layer Single layer
 Parenchyma at midrib 2‒4 layers 2‒4 layers 4‒5 layers 3‒7 layers
 Mesophyll Isobilateral Isobilateral Isobilateral Dorsiventral
 Midrib vascular bundle Bicollateral type Bicollateral type Bicollateral type Bicollateral type
 Leaf thickness (µm) 70‒100 70‒100 200‒240 120‒140
 Leaf margins Rounded to slightly acute Rounded to slightly acute Rounded to slightly acute Rounded to slightly acute
Stem transverse section
 Epidermal layer Single layer Single layer Single layer Single layer
 Chlorenchyma layer 1‒3 layers 2‒4 layers 2‒4 layers 2‒4 layers
 Cortex 1‒3 layers 3‒5 layers 5‒7 layers 5‒7 layers
 Vascular bundle Bicollateral type Bicollateral type Bicollateral type Bicollateral type
 Pith Present Present Present Present