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Alphabetical Listing:
acmodontum
adductum
amabile
appletonianum
argus
armeniacum
barbigerum
bellatulum
bougainvilleanum
bullenianum
callosum
chamberlainianum
charlesworthii
ciliolare
coccineum
concolor
dayanum
delenatii
dianthum
druryi
emersonii
esquirolei
exul
fairrieanum
fowliei
gardineri
glaucophyllum
godefroyae
granduliferum
gratrixianum
hangianum
helenae
hennisianum
henryanum
haynaldianum
herrmannii
hirsutissimum
hookerae
insigne
jackii
javanicum
johorense
kolopakingii
laevigatum
lawrenceanum
liemianum
lowii
malipoense
mastersianum
micranthum
niveum
papuanum
parishii
philippinense
praestans
primulinum
purpuratum
randsii
robinsonii
roebelenii
rothschildianum
sanderianum
sangii
schoseri
stonei
sukhakulii
supardii
superbiens
tigrinum
tonsum
tortipetalum
urbanianum
venustum
victoria-mariae
victoria-reginae
vietnamense
villosum
virens
volonteanum
wardii
List by Subgenus/Sect.