Table III. Summary data for species used in this study.

LHS, Leaf habit and structure (E, evergreen; D, deciduous; h, hypostomatous; a, amphistomatous; HE, heterobaric; HO, homobaric); LF, life form (t, tree; s, shrub; ah, annual herb; ph, perennial herb); LT, leaf thickness (μm); SP, spongy mesophyll airspace fraction (%).

Species	Family	Origin	LHS	LF	LT	SP
Bauhinia galpinii	Fabaceae	Africa	E, h, HE	t	90.6	0.10
Camellia sasanqua	Theaceae	Japan	E, h, HO	s	408.0	0.42
Cercocarpus betuloides	Rosaceae	California, Mexico	E, h, HE	s	248.0	0.63
Comarostaphylis diversifolia	Ericaceae	California, Mexico	E, h, HE	s	284.6	0.40
Helianthus annuus	Asteraceae	North America	D, a, HE	ah	182.3	0.43
Heteromeles arbutifolia	Rosaceae	California, Mexico	E, h, HO	s	268.0	0.60
Hedera canariensis	Araliaceae	Canary Islands	E, h, HO	s	301.8	0.52
Lantana camara	Verbenaceae	Pantropical	D, h, HO	s	207.7	0.33
Magnolia grandiflora	Magnoliaceae	Southern United States	E, h, HE	t	521.1	0.32
Platanus racemosa	Platanaceae	California, Mexico	D, h, HE	t	194.9	0.45
Quercus agrifolia	Fagaceae	California, Mexico	E, h, HE	t	278.0	0.27
Raphiolepis indica	Rosaceae	Southern China, India	E, h, HO	s	462.4	0.40
Romneya coulteri	Papaveraceae	California, Mexico	D, a, HE	ph	368.8	0.35a
Salvia canariensis	Lamiaceae	Canary Islands	D, h, HO	ph	178.2	0.27

^aAs R. coulteri does not contain spongy mesophyll, the airspace fraction value given is for the palisade mesophyll.