SOUTH AMERICAN PLANTS, 59 



niacece, and in some species only of Epilobium in Onayrac€(£ : 

 the same is also observable in all tlie genera of tlie Epacride<2 

 and of Ericaceae, with the exception of Clethra, where they are 

 simple, From these analogous facts it is evident that this com- 

 pound structure of the pollen-grains is not of sufficient import- 

 ance to affect in any way the ordinal position of Salpighssis, 



Mr. Bentham mentioQs only a single species of this genus^ as 



he considers all our garden kinds as mere varieties of S. sinuata. 



On this head I may remark, that I found in Chile^ plants which 



I always considered to be two very distinct species^ viz. S, sinuata 



{my S. glutinosa) and my S, purpurea (Trav. ii. p. 531); but I 



have little doubt that S, picta, S. Barclay ana, S.fulva, S. inter- 



media, kc. are all hybrid productions from these two species, I 



always met with S. sinuata growing near the coast, its corolla 



being constantly of a yellowish white, with brownish stripes ; on 



the contrary, I invariably found S. pmpurea at a much greater 



elevation near the foot of the main Cordillera, or within its 



)rges, its flowers being always of a dark lilac, with deep purple 



lines, and never of the yellowish hue so conspicuous in >S\ sinuata. 



im 



fortunately lost off Cape Horn with my general Chile collections ; 

 but the coloured drawings of both species made in 1820, and 

 which I have preserved, serve to impress these facts strongly on 

 my memory. From the several dried specimens of Salpiglossis 



mm 



and Bridges, we may detect at a glance the two different species. 

 The following I consider as the amended diagnosis of this 

 genus 



Salpiglossis, R. & P. (char, emend.). — Calyx tubulosus, 10- 



nervis, 5-dentatus, dentibus subsequalibus, attenuatis, obtu- 

 siusculis. Corolla infundibuliformis, tubo imo cylindracco, 

 superne campanulata, compressa, limbo 5-lobo, obliquo, sub- 

 bilabiato, lobis profunde emarginatis, superiore majore, crec- 

 tiore, sestivatione reciprocativa*. Stamina 5, inclusa, quorum 

 4 didynama, quinto breviori, sterili ; //tf»2^/i/« subulata, econ- 

 strictione tubi orta; anthene ovatse, 2-lob8e, basi cordats^, sub- 

 versatiles, lobis adnatis, rima marginali deliiscentibus ; j)ollen 

 compositum, e granulis 4 aggregatis, quorum 1 superpositum. 

 Ovarium conicum, disco caruoso sub-2-lobo impositum, 2-locu- 

 lare ; placent<2 centrales, dissepimento utrinque adnatse, multi- 

 ovulatse. Stylus exsertus, apice compressus, incrassatus, sub- 

 incurvus. Stigma majusculum, transverse dilatatum, scmi- 

 lunare, bilabiato-emarginatura, Copsula oblonga, calyce per- 



//?{/. op. vol. i. p. 172. 



i2 



