Pyrrosia stigmosa (Sw.) Ching

Species

Pteridophytes > Polypodiales > Polypodiaceae > Platycerioideae > Pyrrosia

Characteristics

Rhizome 4-4.5 mm thick, shortly elongated, phyllopods 1-2 cm apart, buds at the base of the phyllopods. Anatomy: vascular strands 7-13, ground tissue completely sclerified. Rhizome scales spreading, basifixed, 2.6-6 by 0.9-1.6 mm, dentate or with entire acumen, brown. Fronds monomorphic, stalked, stalk 3-24(-37) cm, 0.2-0.7 as long as the lamina, lamina 11-48 by 1.5-5.2 cm, index 4-13, base cuneate, widest near the middle, apex acute to acuminate, occasionally rounded or obtuse. Venation: veins distinct, veinlets much branched and strongly anastomosing, free veinlets many, excurrent and recurrent. Hydathodes distinct. Stellate hairs dimorphic, a dense mat, light greyish brown, the straight upper rays boat-shaped, appressed. Sori apical to all over the lamina, shortly spaced, in an ill-defined patch, 0.5 mm wide, containing c. 10 sporangia, many scattered over each areole, superficial, developing acropetally. Sporangia sessile, paraphyses not differentiated. Spores smooth.
More
Plants 25-65 cm tall. Rhizome shortly elongated, 4-4.5 mm in diam., in cross section without sclerenchyma strands; phyllopodia 1-2 cm apart, lateral buds basal on phyllopodia. Scales basifixed, 2.6-6 × 0.9-1.6 mm, base dentate; acumen brown, entire or dentate. Fronds monomorphic, stipitate; stipe 9-22 cm, (0.16-)0.25-0.67 × as long as lamina; lamina widest around middle, 2-5.8 × 18-60 cm, base cuneate, apex acute to acuminate, occasionally rounded or obtuse. Hydathodes distinct, superficial. Indument persistent, dimorphic, dense, light grayish brown; upper layer with hairs ca. 0.5 mm in diam., with appressed, boat-shaped rays, lower layer with mainly woolly rays. Sori superficial, without central bundle of paraphyses. Sporangia sessile.
Life form -
Growth form -
Growth support free-standing
Foliage retention -
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.13 - 0.33
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 1-6
Soil texture 7-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Pyrrosia stigmosa world distribution map, present in China, Indonesia, India, Cambodia, Lao People's Democratic Republic, Myanmar, Malaysia, Thailand, and Viet Nam

Identifiers

LSID urn:lsid:ipni.org:names:17416660-1
WFO ID wfo-0001115647
COL ID 78Q3S
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Niphobolus stigmosus Pyrrosia chinensis Cyclophorus stigmosus Apalophlebia venosa Pyrrosia stigmosa Polypodium stigmosum Cyclosorus stigmosus Niphobolus venosus