. 2009 Dec;151(4):2018–2027. doi: 10.1104/pp.109.146969

Table I.

Summary of all Finite Element crypt models listing the parameters that were varied and the results

Models with crypts carry code C, while models with stomata on the leaf surface have code S. Model 1 is the basic model and best representation of B. ilicifolia crypts with fully open stomata. Models 1 to 3 explore the effect of crypt trichomes, where code A represents trichomes that are ascending toward the crypt aperture and code H represents trichomes that are horizontally oriented. Models 4 to 12 explore the effect of stomatal conductance at ambient relative humidities of 50%, 65%, and 80% (indicated as subscripts in the model code). Stomatal size codes are N (narrow), S (standard), and L (large). Stomatal dimensions are given in Table II. Model 13 explores the effect of reduced crypt depth, indicated by the code R replacing the C.

Parameter	Model 1	Model 2	Model 3	Model 4	Model 5	Model 6	Model 7	Model 8	Model 9	Model 10	Model 11	Model 12	Model 13
Crypt models	CS₅₀A	CS₅₀H	CS₅₀	CNB₅₀	CNB₆₅	CNB₈₀	CSB₅₀	CSB₆₅	CSB₈₀	CLB₅₀	CLB₆₅	CLB₈₀	RSB₅₀
Stomatal size	S	S	S	N	N	N	S	S	S	L	L	L	S
Trichomes	A	H	–	–	–	–	–	–	–	–	–	–	–
Boundary layer	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
RH (%)	50	50	50	50	65	80	50	65	80	50	65	80	50
Crypt depth	166	166	166	166	166	166	166	166	166	166	166	166	138.5
Transpiration rate (mmol m⁻² s⁻¹)	3.91	3.89	3.97	2.05	1.35	0.67	3.58	2.31	1.15	11.7	7.47	3.74	3.74
Stomatal conductance (mol m⁻² s⁻¹)	0.37	0.35	0.37	0.17	0.17	0.17	0.37	0.37	0.37	3.30	3.30	3.30	0.37
Crypt conductance (mol m⁻² s⁻¹)	1.66	1.62	1.78	1.52	1.25	1.07	1.17	1.02	0.93	1.51	1.41	1.36	1.37
Crypt effect (%)							15.1	14.8	14.9	48.4	48.5	48.5	11.3
Analogs with stomata on surface							SSB50	SSB65	SSB80	SLB50	SLB65	SNB80
Transpiration rate (mmol m⁻² s⁻¹)							4.22	2.71	1.35	22.6	14.5	7.26
Stomatal conductance (mol m⁻² s⁻¹)							0.39	0.39	0.39	2.26	2.26	2.26