14 SYLVA TELLUR. 



Rumph. 3 1, 10. Lam. Bosc.) foliolis 4-6 ovatis 

 integris, racernis terminalibus — large useful tree 

 of Molucas, excellent timber, flowers yellow, 

 pods one foot long ; sap red like blood, staining 

 permanently. This and other Indian names 

 above, are certainly as good as Piper ^ Cassiuy 

 Coffea, and 50 similar Indian or Arabic names 

 of Linneus, If Bessia is not good enough or 

 too near Bassia ! Dendrema or bloody tree is 

 suggested instead. 



35. GossYPiuM L. auct. Cotton is a fine 

 natural G. most of the sp. being frutescent ; but 

 they are as yet little understood, and the Afri- 

 can and Asiatic kinds not well described. 

 Wildenow, Lamark, Smith and Decandole have 

 but few sp. not well distinguished : Decandole's 

 account of this G, as well as Vitis and some 

 others is very imperfect, having neglected the 

 monograph of American Cottons by Rohr and 

 Rose, which I have chiefly used in my own mo- 

 nograph. Rohr had noticed (but not well 

 named) nearly 40 years ago 34 species and va- 

 rieties, taking his characters from the seeds 

 rather than the variable leaves and glands. I 

 shall give here a synoptical view of his labor 

 and mine, having reduced them to 26 botanical 

 sp. under 3 subgenera, adding the average pro- 

 duce of Cotton by each tree. 



36. Subg. Karpas Raf. semina scabra, 

 avena, nuda non villosa nee tomentosa, sepe 

 nigra. 



37. — Subg. Leiofaium R. (smooth brown) 

 semina levis venosa fuscata, vel viridis. 



38. Subg. Lanigerum R. semina villosa vel 

 tomentosa, 



39. Gossypium (Karpas) virgatum Raf. sp. 

 1 Rohr, Bosc. ramis virgatis, sem. magna ovata 



