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Table 3 Morphology of Salispina species.

From: A revision of Salispina, its placement in a new family, Salispinaceae (Rhipidiales), and description of a fourth species, S. hoi sp. nov

Structure Salispina hoi sp. nov. S. intermedia S. lobata S. spinosa
  USTCMS 1611 (Li et al. 2016) (Fell & Master 1975 ) (Fell & Master 1975 )
Colony pattern Appressed and petaloid on VJA Petaloid on PYGA Appressed and petaloid on VJA Appressed and rosette on VJA
Septa Few, present at maturity Few, present at maturity Few, present at maturity Non-septate at all ages
Hyphal diam (µm) 2–9 2.5–10 3–12 3–9
Sporangiogenic hypha Undifferentiated from vegetative hypha, Undifferentiated from vegetative hypha, Undifferentiated from vegetative hypha, Undifferentiated from vegetative hypha,
  bears 1 terminal sporangium bears 1 terminal sporangium bears 1 terminal sporangium bears 1 terminal sporangium
Sporangia Shape Ovoid, clavate, globose, obpyriform, variable Obovate, obpyriform, globose, elongate, variable Obypriform to auriculate, botryose-like, similar to fused globose sporangia Globose, ovate, obovate
Papilla Non-papillate ND Inconspicuous, unipapillate Inconspicuous, unipapillate
Size (µm) (33.5−)43–57.6–77.5(−87) × (10.5−)20–36.6–66(−75.5) 33–197 × 25–183 (av. 82 × 62) 51–75 × 56–150 (av. 67 × 97) 60–107 (av. 80) diam.
Surface spines Most spines at the apex of the sporangia, forming a crown-like appearance, Some sporangia have scattered spines or non-aculeolate Smooth to spiny, variable degree of coverage from one at the tip to entirely aculeolate Entirely, partially or non-aculeolate Entirely, partially or non-aculeolate
Vacuole Present Present Present Present
Basal plug Present, hyaline Present, hyaline Present, hyaline Present, hyaline
Zoospore discharge Through a thin-walled dehiscence tube, often inconspicuous after full release of zoospores Through a persistent tube Through a thin-walled, flask-shaped dehiscence tube Through a thin-walled, flask-shaped dehiscence tube
Vesicle Absent Absent Absent Absent
Chlamydospores Not observed Not observed Not observed Not observed
Sexual structures Not observed Not observed Not observed Not observed
  1. ND: No data provided.