154 



Plukenet's fig. 2, plate 46, undoubtedly refers to C. PJiaeno- 

 pynwi (Linn. f.). There is a good plate of this in Hort. Brit. 

 Linnaeus referred this plate to Crataegus coccinca, and it has long 

 been incorrectly referred to as C. cordata (Miller). 



Plukenet's fig. 4, plate 46, is the first figure referred by Lin- 

 naeus to Crataegus coccinea. This figure and description require 

 a smooth thorn with broad, slightly lobed leaves, and a red, 

 two-seeded fruit. The only known American thorn that fits this 

 description is C Margaretta Ashe (= C. Brcnvnii Britton). This 

 was not known from the coastal-plain region, but there is a speci- 

 men in the U. S. National Museum from Maryland. Fig. 5, of 

 plate 99, is a young shoot of Crataegus Crus-galli L. 



Plate 100, fig. I, was referred by Linnaeus to Crataegus toinen- 

 tosa. This is the same as Crataegus uniflora Muench., or C par- 

 vifolia Aiton. It is a common coastal-plain species, which both 

 Banister and Clayton must have collected in Virginia. Clayton 

 mentions but one species with leaves hairy on the lower side, and 

 the reference is doubtless to this species. 



That Linnaeus did not know well the thorns he was describing 

 is partially proved by his referring C P/iaenopyrum, a five-seeded 

 species, to a two-seeded species. Miller's description of the 

 Crataegi rdi\s,ed in England is invaluable to us in tracing out these 

 Linnaean species. As Miller says, Linnaeus was doubtless mis- 

 led by Kalm. 



Crataegus viridis L. was collected and probably described by 

 Clayton. About this species there can be no question for there 

 is a Clayton specimen of C. viridis in the British Museum. 



A colored plate was made by Ehret for Plantae Selectae 

 beween 1750 and 1762. This may be the first illustration of 

 Crataegus flava Aiton. It certainly belongs to the flavae, and 

 was raised from seed sent from Carolina by Catesby in 1724. 

 Another American thorn, C. punctata, was illustrated by Jacquin 

 in Hort. Vind. 1770. 



" Further Remarks on the Botanical Exploration of the 

 Bahamas," by Dr. N. L, Britton : 



Referring to a previous communication made to the Club and 

 to others, printed in the Journal of the Nezv York Botanical Gar- 



