143 



mentioned were excluded, and very much larger if the vegetation 

 were analyzed quantitatively instead of qualitatively. (Ever- 

 greens, both coniferous and broad-leaved, in temperate and 

 moderately humid climates at least, seem to be especially char- 

 acteristic of coarse or poor or sour soils.) 



The taxonomic catalogue, which makes up nearly half the 

 book, includes 628 species of pteridophytes and spermatophytes, 

 native and naturalized. Less than 20 per cent, of the angio- 

 sperms are monocotyledons, which is a striking confirmation of 

 the statement in a footnote on page 62 that the list is not complete 

 for grasses and sedges. (Only three species of Cyperus, four of 

 Rhynchospora, and one of Carex are enumerated.) Most other 

 parts of the coastal plain seem to have about 30 per cent, of 

 monocotyledons in their angiospermous flora.* 



In nomenclature (and classification) Dr. Coker has followed 

 as far as possible the seventh edition of "Gray's Manual," 

 because it is "the most available [sic] and conservative book." 

 As his locality is about 150 miles south of the territory covered 

 by the Manual, there are many species and even genera in his 

 flora which are not included in that book, and he has been led 

 into many nomenclatorial inconsistencies by trying to follow it 

 and the current southern floras at the same time. In attempting 

 to reduce the number of these inconsistencies he has made one 

 new combination, Euphorbia exserta (of which systematists will 

 take due notice), and suggested another, Oenothera arenicola. 

 (Both of these species were originally described by Small under 

 genera which have never been recognized by Gray and his 

 direct successors.) 



There are a few cases where species seem to have been wrongly 

 identified. Arundinaria macrosperma, characteristic of the banks 

 of large muddy southern rivers, is hardly to be expected in that 

 kind of country, the " Nymphaea advena" is probably one of the 

 floating-leaved species, the "Euphorbia maculata" of the sand- 

 hills is probably E, cordifolia (for E. maculata is a typical roadside 

 and railroad weed), and the " Viburnum cassinoides" may be 

 V. nitidum. 



* See TORREYA 5: 207-210. 1906; 11: 41. 1911; 12: 224. 1912. 



