Pilotrichaceae Explained

Pilotrichaceae is a family of pleurocarpous mosses in Hookeriales. It includes 20 genera.^[1] It is primarily tropical and epiphytic or epiphyllous.^[2]

Description

Members of the family are characterized by a double costa, sometimes with hyalodermis, and no alar differentiation. Leaves are usually complanate and may by asymmetrical along the dorsal/ventral axis. Leaf margins are dentate to serrate, bordered or not, and often reduced. Laminal cells are isodiametric to linear and smooth to papillose. The sporophyte seta is long, but many other characters vary genus to genus.^[3]

Classification

As reported by Tropicos and World Flora Online:

• Actinodontium
• Amblytropis
• Brymela
• Callicostella
• Callicostellopsis
• Crossomitrium
• Cyclodictyon
• Diploneuron
• Eupilotrichum
• Helicoblepharum
• Hemiragis
• Hypnella
• Lepidopilidium
• Pilotrichum
• Tachypodium
• Thamniopsis
• Trachyxiphium

Notes and References

1. Web site: World Flora Online . 2024-09-14 . www.worldfloraonline.org.
2. Atwood . John . TAXONOMIC REVISION OF THE MOSS GENUS LEPIDOPILIDIUM (PILOTRICHACEAE) . Annals of the Missouri Botanical Garden . August 2015 . 100 . 4 . 364 . 10.3417/2014021 . 14 September 2024.
3. de Freitas Vaz-Imbassahy . Thais . da Costa . Denise Pinheiro . The Pilotrichaceae (Hookeriales) of Rio de Janeiro, Brazil . The Bryologist . Winter 2008 . 111 . 4 . 555 . 10.1639/0007-2745-111.4.551.