Gymnosphaera henryi

{{Short description|Species of fern}}

{{Italic title}}

{{Speciesbox

| status =

| image =

| image_caption =

| genus = Gymnosphaera

| species = henryi

| authority = (Baker) S.R.Ghosh (2004)

| synonyms =

{{Species list

|Alsophila gammiei|R.D.Dixit (1997)

|Alsophila gigantea var. polynervata|(R.H.Miao) Q.Xia (1989)

|Alsophila henryi|Baker (1898)

|Cyathea gigantea var. polynervata|R.H.Miao (1980)

|Cyathea henryi|(Baker) Copel. (1909)

|Cyathea pectinata|Ching & S.H.Wu (1964)

|Cyathea petiolulata|Ching & S.H.Wu (1964)

|Cyathea pseudogigantea|Ching & S.H.Wu (1964)

|Cyathea sharmae|T.Bandyop., T.Sen & U.Sen (2003)

|Cyathea tinganensis|Ching & S.H.Wu (1964)

|Gymnosphaera gigantea var. polynervata|(R.H.Miao) Y.K.Yang & J.K.Wu (2002)

}}

| synonyms_ref = [https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77067491-1 Gymnosphaera henryi (Baker) S.R.Ghosh]. Plants of the World Online. Retrieved 27 December 2023.

}}

Gymnosphaera henryi, synonyms Alsophila henryi and Cyathea henryi, is a species of tree fern native to eastern India and the Himalayas, Indochina, and southern China, where it grows submontane and montane forest at an elevation of 600–1200 m. The trunk of this plant is erect and may be 5–7 m tall or more. Fronds are bi- or tripinnate and usually 2–3 m in length. The rachis is smooth and dark, but occasionally has a few scattered scales. The stipe also has these scales. The scales are either small and pale with irregular fringed edges, or large and dark with a paler margin. Sori are borne on minor veins and lack indusia.

The specific epithet henryi commemorates Irish botanist Augustine Henry (1857-1930), who collected numerous plants in China.