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 |