42 CRAIB—INDIGOFERAS OF CHINA. 
Species Excludendae. 
PE PRS chinensis, Vogel in Nov. Act. Nat. Cur. xix, 
Suppl. i, 
Indigofera rotundifolia, Lour. Fl. Cochin. 458. 
From the descriptions of these two species it is highly probable 
that they do not belong to the genus. 
‘Indigofera melilotoides, Hance in Journ. Bot. 163 (1869) = 
Astragalus. 
Species Incertae Sedis. 
“Indigofera alba, Goualt in Rev. Hortic. Ser. iv, iii, p. 361 
19. 
Indigofera macrostachya, Vent. Jard. Malm. p. et t. 44. 
Indigofera virgata, 8 parvifolia, DC. Prodr. ii, 224. 
Indigofera subulata, Diels in E ngler Jahrb. xxix, 411 an 
Vahl ? 
. Indigofera tinctoria, auct. var. probabiliter=J. Pseudo- 
tinctoria. 
Indigofera trita, Loureiro an Linn. f. ? 
Indigofera heterantha, Franchet Pl. Delavay, 154 an Wall ? 
Ill. ARTIFICIAL KEY TO CHINESE SPECIES OF 
INDIGOFERA. 
The numbers in heavy type refer to the preceding enumeration. 
1. Leaves simple - : ‘ : 1. I, linifolia. 
Leaves compound : : ae 
2. Leaflets 
Leaflets more than 3 
des 
3. Racemes sessile, leaflets glandular, with few 
adpressed hairs . i j 2. I. trifoliata. 
Racemes peduncled, leaflets not glandular : aay 
4. Leaflets rufo-villous 3. I. sericophylla. 
Leaflets (rarely so few as three) with scattered 
adpressed hairs . : : ;  §. 
5. Leaflets reticulate . ‘ : : 27. I. venulosa. 
Leaflets not reticulate : : : 43. I. sticta. 
6. Stem a fcr branchlets) at least in young stage 
spreading or subadpressed hairs. : raat = 
Stem ( fie branchlets) in young stage soon 
with closely adpressed hairs . ; ee 5 2 
