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Table 2 Micromorphological characters of the nutlet in the studied taxa

From: Nutlet micromorphology and character evolution of Lappula species (Boraginaceae) and its systematic implications

Taxon

Characters

SN

CL

BPD

LS

AND

NGRN

TD

SE

PS

L.microcarpa

0

0

1

1

2

1

2

0

2

L. barbata

0

1

0

1

2

2

2

0

2

L. semiglabra

0

0

1

1

2

1

0

0

2

L.ceratophora

4

0

0

1

1

0

0

1

0

L. spinocarpos

4

0

0

1

1

0

0

1

0

L. sessiliflora

3

2

2

1

2

1

3

0

1

R. disperma

0

0

0

1

2

0

1

0

1

L. siniaca

0

0

0

3

0

0

0

2

0

H. rigidum

2

0

0

2

0

1

0

2

2

A. procumbens

1

0

0

0

3

0

0

3

0

M. sylvatica

5

0

0

1

1

0

0

4

0

  1. SN (shape of nutlet) including ovoid (0), semicircular (1), ovoid-rectangular (2), ovoid-triangular (3), pyramid (4), ellipse (5); CL (center line of nutlet) including absent (0), prominent with glochid (1), prominent with tubercles (2); BPD (base surface of prickles on desk) including lack of prickles (0), glabrous (1), verrucose (2); LS (Lamella status) including thread like (0), glossy (1), bumpy with verrucate (2), interrupt (3); AND (Appendage on nutlet desk) including papilla –verrucose (0), without appendage (1), with tuberculate and prickles (2), dome-shape papilla (3); NGRN (number of glochid row on nutlet edge) including lack of glochids (0), 1-row (1), 2-row.outer ones in a regular row (2); TD (tubercles on desk) including without spin (0), 2–3 spines (1), 4–5 spines (2), 5 spines (3); SE (surface emergence) including stellare-aculeate (0), veruucose-subverrucose (1), papilla- verrucose (2), Papilla (3), nonexpressiate (4); PS (prickles surface) including lack of prickles (0), verrucose (1), glossy (2)