14 SYLVA TELLUR. 



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

 integris, racemis 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^ Cassia, 



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.rnost 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 

 hut 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 

 Bosc, 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 lauor 

 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, 

 a vena; nuda non villosa nee. tomentosd, sepe 



nigra. 



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

 semina levis venosa fuscata, vel viridis. 



38. Subg. Lanigeruh R. semina villosa vel 



tomentosa. 



39. Gossypium (Karpas) virgatum Raf. sp. 

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



