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| Amphiprora lepidoptera var. pusilla (Gregory) Van Heurck 1885 |
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| Amphiprora paludosa var. duplex (Donkin) Van Heurck 1885 |
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| Amphora angularis sensu Van Heurck 1885 |
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| Amphora angularis var. hybrida Grunow in Van Heurck 1885 |
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| Amphora angularis var. lyrata (Gregory) Van Heurck 1885 |
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| Amphora ostrearia subvar. belgica Grunow in Van Heurck 1885 |
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| Amphora ostrearia var. quadrata (Brébisson ex Kützing) Van Heurck 1885 |
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| Amphora ovalis var. affinis (Kützing) Van Heurck 1885 |
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| Amphora ovalis f. exilis (Grunow in Van Heurck) Grunow in Van Heurck 1885 |
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| Amphora ovalis var. gracilis (Ehrenberg) Van Heurck 1885 |
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| Amphora ovalis f. minor (Grunow in Van Heurck) Grunow in Van Heurck 1885 |
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| Amphora ovalis f. minor (Grunow in Van Heurck) Van Heurck 1885 |
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| Amphora ovalis var. pediculus (Kützing) Van Heurck 1885 |
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| Amphora perpusilla (Grunow in Van Heurck) Grunow in Van Heurck 1885 |
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| Amphora salina var. minor Van Heurck 1885 |
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| Anaulus debilis (Grunow in Van Heurck) Van Heurck 1885 |
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| Bellerochea malleus (Brightwell) Van Heurck 1885 |
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| Biddulphia alternans (J.W. Bailey) Van Heurck 1885 |
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| Biddulphia antediluviana (Ehrenberg) Van Heurck 1885 |
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| Biddulphia favus (Ehrenberg) Van Heurck 1885 |
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| Biddulphia sculpta (Shadbolt) Van Heurck 1885 |
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| Biddulphia smithii (Ralfs in Pritchard) Van Heurck 1885 |
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| Chaetoceros varians Van Heurck 1885 |
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| Cocconeis placentula var. lineata (Ehrenberg) Van Heurck 1885 |
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| Coscinodiscus rothii var. normani (normanii) (Gregory) Van Heurck 1885 |
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| Coscinodiscus subtilis var. normannii (-manii, -manni) (Gregory) Van Heurck 1885 |
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| Coscinodiscus subtilis var. rothii (Ehrenberg) Van Heurck 1885 |
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| Cyclotella meneghiniana f. minor Van Heurck 1885 |
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| Cyclotella operculata var. radiosa Grunow in Van Heurck 1885 |
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| Cymbella cistula var. maculata (Kützing) Van Heurck 1885 |
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| Cymbella cymbiformis var. parva (W. Smith) Van Heurck 1885 |
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| Cymbella leptoceros (leptoceras) var. elongata Van Heurck 1885 |
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| Cymbella microcephala Grunow in Van Heurck 1885 |
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| Diatoma elongatum var. ehrenbergii (Kützing) Van Heurck 1885 |
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| Diatoma elongatum var. hybrida (Grunow) Van Heurck 1885 |
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| Diatoma elongatum var. tenuis (tenue) (Agardh) Van Heurck 1885 |
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| Dimeregramma (Dimerogramma) minor (minus) var. nana (Gregory) Van Heurck 1885 |
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| Donkinia recta (Donkin) Grunow in Van Heurck 1885 |
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| Epithemia musculus var. constricta (Brebisson cum specim.) Van Heurck 1885 |
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| Eunotia flexuosa var. bicapitata (Grunow in Van Heurck) Van Heurck 1885 |
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| Fragilaria brevistriata Grunow in Van Heurck 1885 |
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| Fragilaria crotonensis var. prolongata (Grunow) Van Heurck 1885 |
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| Gomphonema augur var. gautieri Van Heurck 1885 |
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| Gomphonema gracile var. auritum (A. Brun) Van Heurck 1885 |
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| Gomphonema gracile var. dichotomum (W. Smith) Van Heurck 1885 |
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| Gomphonema montanum var. commutatum (Grunow in Van Heurck) Grunow in Van Heurck 1885 |
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| Gomphonema olivaceum f. vulgaris (Kützing) Grunow in Van Heurck 1885 |
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| Grammatophora marina var. communis (Grunow) Van Heurck 1885 |
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| Grammatophora marina var. macilenta (W. Smith) Van Heurck 1885 |
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| Grammatophora marina var. subtilissima (J.W. Bailey ex Ralfs in Pritchard) Van Heurck 1885 |
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| Grammatophora marina var. vulgaris (Grunow) Van Heurck 1885 |
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| Melosira crenulata f. binderana (Kützing) Van Heurck 1885 |
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| Melosira crenulata f. tenuis (Kützing) Van Heurck 1885 |
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| Melosira juergensii (juergensi) var. octagona Grunow in Van Heurck 1885 |
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| Micropodiscus weissflogii (Grunow in Van Heurck) Grunow in Van Heurck 1885 |
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| Navicula brevis var. elliptica Van Heurck 1885 |
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| Navicula cancellata var. ammophila (Grunow) Van Heurck 1885 |
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| Navicula cancellata var. scaldensis Van Heurck 1885 |
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| Navicula cari var. angusta (Grunow) Grunow in Van Heurck 1885 |
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| Navicula cincta f. minuta Van Heurck 1885 |
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| Navicula contenta Grunow in Van Heurck 1885 |
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| Navicula contenta var. biceps (Grunow) Van Heurck 1885 |
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| Navicula cuspidata var. halophila Grunow in Van Heurck 1885 |
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| Navicula digitoradiata var. cyprinus (Ehrenberg) Van Heurck 1885 |
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| Navicula elliptica var. minima Van Heurck 1885 |
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| Navicula fontinalis Grunow in Van Heurck 1885 |
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| Navicula gastrum var. placentula (Ehrenberg) Van Heurck 1885 |
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| Navicula gibba sensu Van Heurck 1885 |
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| Navicula gibba var. brevistriata Van Heurck 1885 |
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| Navicula gracilis var. schizonemoides Van Heurck 1885 |
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| Navicula hennedyi (hennedii) var. clavata (Gregory) Van Heurck 1885 |
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| Navicula iridis var. amphirynchus (Ehrenberg) Van Heurck 1885 |
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| Navicula iridis var. dubia (Ehrenberg) Van Heurck 1885 |
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| Navicula iridis var. producta (W. Smith) Van Heurck 1885 |
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| Navicula iridis var. undulata (Grunow) Van Heurck 1885 |
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| Navicula johnsonii var. belgica Van Heurck 1885 |
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| Navicula lanceolata var. arenaria (Donkin) Van Heurck 1885 |
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| Navicula lanceolata var. phyllepta (Kützing) Van Heurck 1885 |
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| Navicula liburnica Grunow in Van Heurck 1885 |
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| Navicula mesolepta var. termes (thermes) Van Heurck 1885 |
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| Navicula nobilis var. dactylus (Ehrenberg) Van Heurck 1885 |
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| Navicula palpebralis var. angulosa (Gregory) Van Heurck 1885 |
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| Navicula palpebralis var. barclayana (Gregory) Van Heurck 1885 |
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| Navicula palpebralis var. barclayana sensu Van Heurck 1885 |
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| Navicula palpebralis var. obtusa Van Heurck 1885 |
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| Navicula peregrina f. upsaliensis (Grunow in Van Heurck) Van Heurck 1885 |
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| Navicula radiosa var. tenella (Brébisson ex Kützing) Van Heurck 1885 |
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| Navicula reinhardti (reinhardtii) var. gracilior Grunow in Van Heurck 1885 |
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| Navicula retusa sensu Van Heurck 1885 |
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| Navicula stauroptera var. parva (Ehrenberg) Van Heurck 1885 |
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| Navicula sublinearis Grunow in Van Heurck 1885 |
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| Navicula subretusa Grunow in Van Heurck 1885 |
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| Navicula viridula var. avenacea (Brébisson) Van Heurck 1885 |
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| Navicula viridula var. slesvicensis (Grunow) Van Heurck 1885 |
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| Nitzschia delognei Grunow in Van Heurck 1885 |
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| Nitzschia frustulum var. perpusilla (Rabenhorst) Van Heurck 1885 |
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| Nitzschia longissima var. closterium (Ehrenberg) Van Heurck 1885 |
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| Nitzschia microcephala var. elegantula (Grunow in Van Heurck) Van Heurck 1885 |
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| Nitzschia obtusa var. brevissima Van Heurck 1885 |
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| Nitzschia obtusa var. nana Grunow in Van Heurck 1885 |
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| Nitzschia tryblionella var. calida (Grunow in Cleve & Grunow) Van Heurck 1885 |
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| Nitzschia vitrea var. recta (Hantzsch in Rabenhorst; Grunow in Cleve & Grunow) Van Heruck 1885 |
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| Plagiotropis elegans (W. Smith) Grunow in Van Heurck 1885 |
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| Pleurosigma acuminatum var. brebissonii (Grunow in Cleve & Grunow) Van Heurck 1885 |
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| Pleurosigma affine var. nicobarica Grunow in Van Heurck 1885 |
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| Pleurosigma angulatum var. aestuarii (Brebisson in Kutzing) Van Heurck 1885 |
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| Pleurosigma angulatum var. delicatulum (W. Smith) Van Heurck 1885 |
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| Pleurosigma angulatum var. elongatum (W. Smith) Van Heurck 1885 |
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| Pleurosigma angulatum var. quadratum (W. Smith) Van Heurck 1885 |
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| Pleurosigma angulatum var. strigosa (strigosum) (W. Smith) Van Heurck 1885 |
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| Pleurosigma balticum var. brebissonii (Grunow in Cleve & Grunow) Van Heurck 1885 |
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| Rhaphoneis (Raphoneis) belgica (Grunow in Van Heurck) Grunow in Van Heurck 1885 |
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| Rhaphoneis (Raphoneis) caduceus (caducea) (Ehrenberg; Ehrenberg) Van Heurck 1885 |
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| Stauroneis africana var. acuminata Grunow in Van Heurck 1885 |
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| Stauroneis anceps var. amphicephala (Kützing) Van Heurck 1885 |
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| Surirella ovalis var. angusta (Kützing) Van Heurck 1885 |
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| Surirella ovalis var. crumena (Brébisson ex Kützing) Van Heurck 1885 |
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| Surirella ovalis var. minuta Van Heurck 1885 |
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| Surirella ovalis var. ovata (Kützing) Van Heurck 1885 |
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| Surirella ovalis var. pinnata (W. Smith) Van Heurck 1885 |
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| Surirella robusta var. splendida (Ehrenberg; Ehrenberg) Van Heurck 1885 |
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| Surirella robusta var. tenera (Gregory) Van Heurck 1885 |
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| Surirella striatula var. biplicata Grunow in Van Heurck 1885 |
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| Surirella (Suriraya) fastuosa var. lata (W. Smith) Van Heurck 1885 |
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| Synedra acus var. angustissima (Grunow) Van Heurck 1885 |
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| Synedra affinis var. fasciculata (Lyngbye; Kutzing) Grunow in Van Heurck 1885 |
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| Synedra affinis var. parva (Kützing) Grunow in Van Heurck 1885 |
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| Synedra affinis var. tabulata (Kützing) Van Heurck 1885 |
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| Synedra ulna var. danica (Kützing) Grunow in Van Heurck 1885 |
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| Synedra ulna var. lanceolata (Kützing) Van Heurck 1885 |
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| Synedra ulna var. obtusa (W. Smith) Van Heurck 1885 |
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| Synedra ulna var. oxyrhynchus (Kützing) Van Heurck 1885 |
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| Synedra ulna var. spathulifera (Grunow in Van Heurck) Grunow in Van Heurck 1885 |
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| Synedra ulna var. splendens (Kützing) Van Heurck 1885 |
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| Synedra ulna var. subaequalis (Grunow) Van Heurck 1885 |
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| Synedra ulna var. vitrea (Bory ex Lenormand Herb., Kutzing) Van Heurck 1885 |
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| Synedra vaucheriae var. perminuta (Grunow) Van Heurck 1885 |
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| Tetracyclus rupestris (Braun ex Rabenhorst) Grunow in Van Heurck 1885 |
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| Vanheurckia rhomboides f. crassinervia Grunow in Van Heurck 1885 |
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| Vanheurckia vulgaris (Thwaites) Van Heurck 1885 |
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