( vii ) 



List of Fcq^ers and Bools hearing on the Fertilisation 

 of the Orchidese, ^vhich have been j3iihlished since the 

 appearance of the First Edition of this Worli in 

 1862, arranged in Chronological Order. 



Bkokn, H. G. — * Charles Darwin, iiber die Einrichtungen zur Be- 

 fruchtung britischer und auslandischer Orchideen.' AVith 

 an Appendix by the Translator on Stanhopca devoniensis. 

 Stuttgart, 1862. 



Gray, Asa. — On Platanthera (Hahenaria) and Gymnadenia in 

 ' Enumeration of Plants of the Eocky Mountains.' — American 

 Journal of Scienee and Arts, Second Series, vol. xxxiv., No. 

 101, Sept. 1862, p. 33. 



Gray, Asa. — On Platanthera Jiookeri, in a review of the first edi- 

 tion of the present work. — American Journal of Science and 

 Arts, vol. xxxiv. July 1862, p. 143. 



Anderson, J. — ' Fertilisation of Orchids.' — Journal of Horticulture 

 and Cottage Gardener, April 21, 1863, p. 287. 



GossE, p. H. — ' Microscopic Observation on some Seeds of Oi-chids.- 

 — Journal of Horticulture and Cottage Gardener, April 21, 

 1863, p. 287. - ■ 



Gray, Asa. — On Platanthera (ITahcrnaria) flava and Gymnadenia 

 tridentata. — American Journal of Science and Arts, vol. xxxvi. 

 Sept. 1863, p. 292. 



Journal of Horticultcre and Cottage Gardener. — March 17, 

 1863, p. 206. *0n Orchid Cultivation, Cross-breeding, and 

 Hybridising.' 



ScDDDER, J. H. — On Pogonia ophioglossoides. Proceedings of the 

 Boston Society of Natural History, vol. ix. April, 1863. 



Treviranus. — 'Ueber Dichogamie nach C. C. Sprengel und Ch, 

 Darwin, § 3. Orchideen.' — Botanische Zeitung, No. 2, 1863, 

 p. 9. 



