Linaceae

Linaceae
Linum pubescens
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malpighiales
Family:	Linaceae DC. ex Perleb[1]
Genera
See text

Linaceae is a

In the Linoideae, the largest genus is Linum, the flaxes, with 180–200 species including the cultivated flax, Linum usitatissimum. Members of the Linoideae include herbaceous annuals and perennials, as well as woody subshrubs, shrubs, and small trees (Tirpitzia) inhabiting temperate and tropical latitudes of Eurasia, Africa, Australia, and the Americas. The largest genus of the Hugonioideae is Hugonia (about 40 species); the Hugonioideae are woody vines, shrubs, and trees, and are almost entirely tropical in distribution. In addition to their growth habits and geographic distributions, the Linoideae and Hugonioideae can be differentiated by the number of fertile stamens (five in the Linoideae, 10 in the Hugonioideae) and fruit type (capsules in the Linoideae, fleshy drupe-like fruits in the Hugonioideae).

Genera in subfamily Linoideae

• Anisadenia Wall. ex Meisn. (2 sp.)
• Hesperolinon (Gray) Small (13 sp.)
• Linum L. (approximately 200 species)
• Radiola
  Hill (1 sp.)
• Reinwardtia Dumort. (1 sp.)
• Sclerolinon C.M.Rogers (1 sp.)
• Tirpitzia Hallier f. (3 sp.)

Former genera; Cliococca (synonym of Linum L.)^[2]

Genera in subfamily Hugonioideae

• Hebepetalum Benth. (3 sp.)
• Hugonia l. (6 sp.)
• Indorouchera Hallier f. (1 sp.)
• Roucheria Planch. (7 sp.)

Former genera; Durandea (synonym of Hugonia L.,^[3]) and Philbornea (synonym of Hugonia L.^[4])

Under the old Cronquist system of classifying the flowering plants, the Linaceae were placed in their own order, the Linales. Modern classifications place them in the order Malpighiales.

References