INMDER OF &BP ECE 8. 
(THE SYNONYMS ARE IN ITALICS.) 
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Abronia arenaria, Menz. 43 ZEschynomene sensitiva, Sw... : oe 
gracilis, Benth. 44 ZEsculus californicus, Benth, . ‘ : 9 
umbellata, Lam. 43 Ageratum conyzoides, Linn. . ; ope» e 
Abutilon californicum, Benth. 8 Alchornea grandis, Benth. é : . 164 
graveolens, Wight. et Arn. 69 Alsodeia deflexa, Benth. ‘ ‘ on 
pedunculare, Humb. et Kunth 69 Alstreemeria chorullensis, Herb. ; de 
reflexum, Sw. ‘ 68 Amaranthus retroflexus, Linn. . : - 168 
Acacia acantholoba, Humb. et Kunth 90 scariosus, Benth. (Plate LI.) _.. . 158 
Hindsii, Benth. 90 spinosus, Linn. . ‘ : < At 
macracantha, Humb. et Kunth . 90 urceolatus, Benth, ‘ : 158 
pellacantha, Vog. 90 Amauria rotundifolia, Benth. . , pen! 
villosa, Willd. 90 Ambrina ambrosicides, Mog. . ; « 159 
Acalypha californica, Benth. 51 Ambrosia artemisieefolia, Linn. > 25, 115 
leptoclada, Benth. 164 Amerimnum Brownei, Sw. . Be 
obovata, Benth. (Plate LIII.) 163 Amphilophium paniculatum, Humb. et Kunth 129 
pilosa, Cav. . d 164 Anacardium occidentale Linn. : 52 78 
vestita, Benth. 164 Andropogon incompletus, Presl. ‘ Ree i 
Achillea millefolium, Linn. 32 Anoda hastata, Cav. . : : 8 
Achyranthes aspera, Linn. 157 lanceolata, Hook. et Arn. ‘ - 69 
Acnistus arborescens, Schlecht. é 142 Anona reticulata, Linn. : . . 64 
Acoma dissecta, Benth. (Plate XVII.) . 29 | Anotis thymifolia, DC. . . - 106 
Acourtia formosa, Don 122 Anthurium Humboldtianum, Kunth. . 170 
Acrocarpidium brevipes, Benth. 166 | Antigonon leptopus, Hook. et Arn. . 47, 160 
Acrocomia selenocarpa, Mart. 169 | Antirrhinum cyathiferum, Benth. (Plate XIX.) 40 
Adenaria purpurata, Humb. et Kunth 93 Aphelandra pectinata, Nees. . 186 
Adenostemma Swartzii, Less. 111 Sinclairiana, Nees (Plate XLVIL ) : Ae 
Adenostoma fasciculata, Hook. et Arn. 14 Aphragmia Heenkei, Nees ; ; - 146 
Echmea laxiflora, Benth. ‘ 173 rotundifolia, Nees : ‘ - 146 
pyramidalis, Benth. 173 Aplopappus arenarius, Benth. . : . 2 
Egiphila glomerata, Benth. 154 baccharoides, Benth. . . - 24 
JEschynomene glandulosa, Poir. 82 | Apodanthera gracilis, Benth. . 99 
