Rubus.| ROSACEAE. 115 
Pod oblong, sinuate, 2—5-seeded, pointed, the ier (replum) armed 
sate spreading prickles. — Griseb. Fl. W. Ind. p. 
e well known sensitive plant, a ass - tropical America, is i established in 
si pants of Kauai and in Kan , Oa 
Among the introduced trees of 0 ie genera . belonging this suborder an important 
‘h 
place belongs t lgaroba, Prosopis juliflora, DC. or P. dulcis, Kunth, on 
account of its quick and easy growth, even in the driest situations has be 1 
planted in the low lands and commences to spread spontaneously S$ seeds are ed 
in a sweet pulp, as is also the case with the Pithecolobium dulce, Benth., which likewise 
promises to become eenerelt spread. Pithecolobium Samang, x an nkey- 
bec ol a e Sa: or M 
pod tree, enjoys great favor as a shade tree, as is also the ¢ with Parkia Africana 
Of lesser pe prraaces are: Adenanthera pavonina, Calliandra Ricotta. Dichrostachys 
cinerea and o 
Orper XXVI. ROSACEAE. 
Sepals 5, rarely 4, united into a lobed calyx, either enclosing the 
ovary, or adhering to it, or quite free. Petals as many, inserted on the 
éalyx at the base of its lobes, or rarely wanting. Stamens usually numerous, 
inserted with the petals, free. Ovary of 1, 2 or more carpels usually 
distinct at the time of flowering, superior, free from the calyx, but some- 
times combined even then into a single 2—5-celled ovary which is always 
inferior or connate with the calyx. Ovules 1 or 2 or rarely more in 
each carpel. As the fruit enlarges the carpels either remain free or 
are variously combined with each other or with the calyx; when ripe 
they are indehiscent, or occasionally open on the inner edge. Seeds 
okay albumen. Embryo with large cotyledons and a short radic le. 
, shrubs or herbs with alternate, mostly toothed or divided leaves. 
rele alee wanting. Flowers either solitary at the end of the years 
sie or in cymes or panicles, or more rarely in lateral branches or racemes. 
s Order, more at home in the tem — and cooler parts of the northern 
hemi ‘oan in the tropics or southern hemisphe 
Ovaries or carpels superior, free from the aes 
Calyx ones. without bracteoles ; * p ; 1. Rubus. 
Calyx open, its lobes alternate wit 5 beicleoles 2. Pragoria. 
a tube ‘constricted at the throat, sows no petals; leaves 
vupeede 3. Acaena. 
Cutpels inferior, united into a Sveelled ovary and adherent to the 
calyx-tube, which is closed ov 4. Osteomeles. 
. RUBUS, 
Calyx free, deeply Pa persistent. Petals 5. Stamens numerous. 
Carpels numerous, with 2 sepoiet ovules in each, only one of which 
matures. Styles subterminal. Fruit a kind of granulated berry, formed 
by the union of the succulent 2 round the conical or shortly oblong 
dry receptacle. — Scrambling or suberect shrubs, sometimes herbaceous, 
leafy panicles. Stipules adnate to the patiolé. 
at 
