ON THE NATURAL HISTORY OF MADAGASOAR. 335 
GraMINEZ.—Coix Lacryma, Dactyloctenium egyptiacum, Eleusine 
indica, Cynodon Dactylon, Panicum Crus-galli, fiuitans, prostratum, 
sanguinale, and Colonum, Chloris barbata, Oplismenus Burmanni, Ste- 
notaphrum complanatum, Andropogon contortus. 
CypERACEE.——Cyperus compressus, rotundus, difformts, articulatus, 
Mariscus umbellatus, Abilgaardia monostachya, Fimbristylis diphylla, 
Scirpus mucronatus, Fuirena umbellata, Lipocarpha argentea, Cladium 
Mariseus. 
Composit2.—Elephantopus scaber, Ageratum conyzoides, Adeno- 
stemma viscosum, Mikania scandens, Gnaphalium luteo-album, Kclipta 
erecta, Bidens pilosa and bipinnata, Chrysanthellum procumbens, Sonchus 
asper and oleraceus, 
Lecuminosm.—Crotalaria verrucosa and striata, Tephrosia pur- 
purea, Zornia diphylla, Desmodium triflorum, Abrus precatorius, 
Clitoria Ternatea, Teramnus labialis, Mucuna pruriens, Dioclea reflexa, 
Canavalia ensiformis, Sophora tomentosa, Casalpinia Bonducella, Cassia 
occidentalis. 
ALVACER.—Sida rhombifolia, spinosa, carpinifolia, Urena lobata, 
Hibiscus tiliaceus. : 
The majority of these cosmopolitan plants are coarse-growing 
’ annuals or herbaceous perennials, with abundant flowers and copious 
easily-dispersed. seeds. They are mostly such as grow readily in 
waste a en places. A few of them are shrubby plants of 
sea-shores, as, for instance, Suriana maritima, Hibiscus tiliaceus, an 
Sophora tomento the flowering plants Piper subumbellatum is 
portion which they will bear to the whole flora | 
because the flora of Madagascar is so much more extensive 
HE FLO 
Hooker, a 
ieotyledons. Reckoning the orders of 
same scale, the number will be about 
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