Rehmannia (for Russian physician Jo-
seph Rehmann)-Kay-man-nee-uh.
Reinwardtia (for Dutch botanist K. G.
K. Reinwardt)-Ryn-wahrt-ee-uh.
Renanthera (kidney-anther, as to shape,
in one species) - Ren-anth-er-uh.
Reseda (from word, to calm; for sup-
posed sedative qualities)-Res-seed-
uh: Mignonette.
Retinospora; Retinispora (resin-seed) -
Ret-in-noss (niss)-por-uh: Now the
genus Chamaecyparis.
Rhabdothamnus (rod-bush, as to form
of branches)-Rab-doh-tham-nus.
Rhamnus (classical name for a prickly
shrub)-Ram-mis: Buckthorn.
Rhapidophyllum (rod-leaf, as to narrow
leaflets) - Rap-id-oh-fill-um: Needle
palm.
Rhapis (rod, as to leaf or corolla char-
acters)-Ray-piss: Lady palm.
Rheum (old name for the plant) - Ree-
um: Rhubarb.
Rhexia (classical name) - Rex-ec-uh:
Meadow-beauty.
Rhinanthus (nose-flower, as to shape)
-Rye-nanth-us: Rattle-box.
Rhipsalis (wicker-work, for branch or
stem masses) - Rip-sal-iss.
Rhodochiton (red-cloak, as to calyx)-
Roh-doh-kye-ton: Purple bell-vine.
Rhododendron (rose-tree, as to flower
colors of many species) - Roh-doh-
den-dron: Rhododendron, Rose-bay,
Azalea (as to various species).
Rhodomyrtus (rose-myrtle, as to flower
colors) - Roh-doh-mertus: Downy-
myrtle (R. tomentosa).
Rhodostachys (rose-spike, as to flower
color of some species) - Koh-doss-
tak-iss.
Rhodothamnus (rose-shrub, as to flower
colors)-Roh-doh-thasm-nus.
Rhodolypos (rose-type, as to form re-
sembling that of a single rose) - Roh-
doh-fye-pos: Jetbead.
Rhoeo-Ree-oh.
Rhombophyllum (rhomboid-leaf, as to
leaves of roughly diamond shape)-
Rom-boh-fill-um.
Rhopalostylis (club-style, as to shape
of flower styles) - Roh-pal-lost-il-
iss: Nikau palm.
Rhus (classical name) - Russ: Sumac;
(poison-ivy and poison-oak are now
classified as R. radicans).
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Ribes-Rye-beez: Currant, Gooseberry.
Ricinus - Riss-in-us: Castor-bean,
Castor-oil-plant.
Ricotia (for French botanist M. Ricot)
-Rik-koh-shee-uh.
Rivina (for German botanist A. Q.
Rivinus) - Riv-vye-nuh: Rouge-
plant.
Robinia (for Vespasian Robin, who in-
troduced it into Europe from North
America) - Roh-bin-ee-uh: Locust.
Rochea (for Swiss botanist Francois
de la Roche)-Roh-kee-uh.
Rodgersia (for U. S. Navy Commodore
Rodger s) -Rod-jerz-ee-uh.
Rohdea (for German physician-botanist
M. Rohde)-Roh-dee-uh.
Romanzoffia (for Russian Count Nich-
olas Romanzoff) - Roh-man-zoff-ee-
uh.
Romneya (for astronomer A. Romney
Robinson) - Rom-nee-uh: Matilija-
poppy.
Romulea-Rom-yew-lee-uh.
Rondeletia (for French naturalist-phy-
sician Guillaume Rondelet)-Ron-del-
leesh-ee-uh.
Rosa (ancient classical name for the
genus)-Roh-suh: Rose.
Roseocactus (rosy-cactus, probably as
to color in some species) - Roh-see-
oh-kak-tus.
Rosmarinus (sea-dew, as to its seashore
habitat) - Ross-mar-rye-nus: Rose-
mary.
Roystonea (for American General Roy
Stone) - Roy-stoh-nee-uh: Royal
palm.
Rubus (classical name for bramble
plants) - Roo-bus: This genus, the
brambles, includes Blackberry, Dew-
berry and Raspberry.
Rudbeckia (for Swedish botanist Olans
Rudbeck) - Rud-bek-ee-uh: Cone-
flower.
Ruellia (for French botanist Jean
Ruel) - Rew-e//-ee-uh.
Runtex (classical name) - Roo-mex:
Dock, Sorrel.
Ruscus - Russ-kus: Butchers-broom (R.
aculeatus).
Russelia (for physician Alexander Rus-
sell) - Russ-seel-ee-uh: Coral-blow.
Ruta (classical name)-Root-uh: Rue.
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