DR. H. F. HANCE OK SOME CHIXESE CORYLACE^. 201 



this is, of course, not impossible. But all the species found 

 about the latitude of Peking, and the greater number of the Ja- 

 panese, are quite distinct from those of southern China, and 

 might be expected a fortiori to be so from those of Cochin china, 

 the tropical character of whose forests may be fairly inferred 

 from the circumstance that the Eeport of a Commission ap- 

 pointed in 1865 by the '' Comite Agricole " enumerates eight 

 Dipterocarpacecd as furnishing valuable timber. 



I subjoin a diagnosis of the tree, and also of two undescribed 

 CorylacecB in my herbarium, merely remarking that I have ad- 

 mitted the genus Castanopsis in deference to M. DeCandolle's 

 decision. Had I consulted my own judgment, I should have 

 named this Chestnut Quercics Loureirii^ — a renewed consideration 

 of the subject since my article on Quercus and Castanea was 

 published in the first volume of Dr. .Seemann's 'Journal of 

 Botany,' aided by a careful perusal of what has been written by 

 Miquel, Oudemans, Kotschy, and especially A. DeCaudolle, and 

 a partial study and examination of most of the Asia-Minor 

 forms, many from Japan, and a fair number from the Indian ar- 

 chipelago, having lead me to the conclusion that neither Castanea 

 nor Gastanopsis are to be distinguished from Quercus as genera, 

 in the sense in which I hold the term ; and such, I should expect, 

 would be the A'iews of the authors of the * Genera Plantarum.' 



Castanopsis chinensis, mihi. Arbor 30— I0-pe(]alis,ramisjunioribu8 

 glaberrimis, foUis petiolo polHcari suffultis e basi cuneata subovato- 

 lanceolatis acuminatis a medio ad apicem distanter calloso-serratis sub- 

 coriaceis glaberrimis 4-5 poHiceslongis parte latissima 1^ poU.latis in 

 utroque latere 8-12-costulatis atque insuper reticulatis, costulis subtus 



praecipue prominulis, ameutis , spicis foemineis folio sequaUbus, 



fructibus junioribus globosis monocarpis sparsis v. aggregatis fulvo- 

 velutinis aculeis in verticillos 3 vel 4 sinuosos dense seriatis rectis 

 subulatis rigldis saepius compositis v. basi counatis ciaereo-sericeis 

 supeme glaberrimis brunneis echinatis. 



Hab. In silvis densis circa ccenobium Buddhisticum Fi-Ioi-tsz, ad fauces 

 Tsiug.yune fl. (North River), prov. Cantonieasis, d, 19 Sept. 1866, 

 fructibus immatiu"is onustam, invenerunt Sampson et Hance, (Ex- 

 sice, no. 13785.) 



C. echidnocarpa^ A. DC, is, I think, the closest ally of this 

 plant, though the young fruits most nearly resemble those of C. 

 tungtirrut. A.. DC, I am much inclined to believe that a nut oc- 

 casionally sold for the table in the Canton markets is referable 

 to this species. It is ovoid-turbinate, 10-11 lines long, of a 



