EXPLANATION OF PLATES. 
PL Fig. 1, Phoradendron uncinatum, Robinson, n. sp. Fig. 2, Bursera 
ealionahail ncaa n. - Fig. 3, fruit of ray-flower of Acanthospermum micro- 
carpum, Robinson, . Fig. 4, fruit of ray-flower in Acanthospermum hispidum, 
Figs. 5, 6, 1, "Telanthera Helleri, Robinson, n. sp. , leaf of Telanthera 
Heller’, var. obtusior, Robinson, n. var. Fig. 9, Scalesia Vales Robinson, n. sp. 
Fig. 10, the same, a pale of the disk. 
Prate 2. Fig. 1, Pilea Baurii, Robinson, n.sp. Fig. 2, Telanthera Snodgrassii, 
Robinson, n.sp. Fig. 3, Acnistus insularis, Robinson, n.sp. Fig. 4, Bidens refracta, 
Brandegee. Fig. 5, Euphorbia nesiotica, Robinson, n. sp. 
ATE 3. Fig. 1, Scalesia sypaprepe Robinson, n. sp. Figs. 2, 3, Scalesia micro- 
phate Robinson, n. sp. Figs. 4, 5, 6, 7, Scalesia narbonensis, Robinson, 0. SP- 
Fig. 8, Scalesia Snodgrassii, aabbion: n. sp. 
