Rosaceae tribe Lyonothamneae

Brouillet

J. Bot. Res. Inst. Texas 2: 385. 2008.

Endemic
Treatment appears in FNA Volume 9. Treatment on page 345. Mentioned on page 21.

Trees, sometimes shrublike; unarmed. Leaves opposite, simple or pinnately compound; stipules caducous, free; venation pinnate. Flowers: perianth and androecium perigynous; epicalyx bractlets (1 or) 2 or 3; hypanthium hemispheric; torus absent; carpels 2 (or 3), distinct, free, styles terminal, distinct; ovules 2–4+, nearly apical, pendulous, clustered. Fruits aggregated follicles; styles tardily falling.

Distribution

Calif. (Channel Islands)

Discussion

Species 1.

The base chromosome number for Lyonothamneae is x = 9. Cyanogenic glycosides are absent from Lyonothamnus.

Selected References

None.

Lower Taxa

Luc Brouillet +
Brouillet +
compound +  and simple +
opposite +  and alternate +
free +  and distinct +
Calif. (Channel Islands) +
not +  and aggregated +
unisexual +  and bisexual +
not +  and aggregated +
not +  and aggregated +
crassinucellate +
compound +  and simple +
deciduous +  and persistent +
toothed +, unlobed +  and lobed +
inferior +  and superior +
biseriate +  and clustered +
2 +  and 4 +
0 (?) +  and 4 (?) +
free +  and distinct +
5 +  and 4 +
adnate +, free +, connate +  and distinct +
J. Bot. Res. Inst. Texas +
not arillate +
free +  and distinct +
free +  and distinct +
branched +  and simple +
deciduous +  and persistent +
distinct +
basal +, lateral +, subterminal +  and terminal +
not elongate +
Rosaceae tribe Lyonothamneae +
Rosaceae subfam. Amygdaloideae +
inconspicuous +
tree +  and shrublike +
17 +, 15 +, 9 +  and 8 +