Table 2 Characters chosen for each of the tested characters groups
From: Species determination using AI machine-learning algorithms: Hebeloma as a case study
Character | Type | Dims | Character group | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | |||
Latitude | Continuous geographic | 1 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||
Longitude | Continuous geographic | 1 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||
Altitude | Continuous geographic | 1 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||
Is Europe, Is North America | Discrete geographic | 2 | Only as filter | ||||||||||
Associates with plant family | Discrete habitat–associating with Pinaceae, Salicaceae or Fagaceae | 3 | ✓ | ||||||||||
Number of complete lamellae | Continuous macroscopic | 1 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||
Spore ornamentation O1–O4 | Discrete microscopic | 4 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||
Perispore loosening P0–P3 | Discrete microscopic | 4 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||
Spore dextrinoidity D0–D4 | Discrete microscopic | 5 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Spore length | Continuous microscopic | 1 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||
Spore width | Continuous microscopic | 1 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||
Spore Q | Continuous microscopic | 1 | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||
Cheilocystidia length | Continuous microscopic | 1 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||
Cheilocystidia apex width | Continuous microscopic | 1 | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||
Cheilocystidia A/M | Continuous microscopic | 1 | ✓ | ✓ | ✓ | ✓ | |||||||
Cheilocystidia A/B | Continuous microscopic | 1 | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||
Cheilocystidia B/M | Continuous microscopic | 1 | ✓ | ✓ | ✓ | ✓ | ✓ | ||||||
Cheilocystidia main shape | Discrete microscopic–Shape is cylindrical, ventricose-lageniform, clavate gently, clavate-stipitate, clavate-ventricose or pyriform | 6 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ||||
Basidia Q (length/width ratio) | Continuous microscopic | 1 | ✓ | ✓ | ✓ | ||||||||