Joseph Louis Jean Claessens
* October 15, 1873 – August 21, 1949 †
botanical collector
botanical collector
identified 5,389 specimens.
Not all available columns are shown.
| Scientific Name | Collected By | Identified By | Date Collected | Date Identified | Family | Institution | Catalog Number | Type Status | |
|---|---|---|---|---|---|---|---|---|---|
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Vismia rubescens var. tomentosa Bamps | Claessens J. | Hypericaceae | BR | BR0000008900326 | Type of Vismia rubescens var. tomentosa Bamps | |||
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Vismia rubescens var. tomentosa Bamps | Claessens J. | Hypericaceae | BR | BR0000008900654 | Type of Vismia rubescens var. tomentosa Bamps | |||
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Rytigynia squamata (De Wild.) Robyns | Claessens J. | Rubiaceae | BR | BR0000008856609 | Type of Vangueria squamata De Wild. | |||
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Rytigynia squamata (De Wild.) Robyns | Claessens J. | Rubiaceae | BR | BR0000008856630 | Type of Vangueria squamata De Wild. | |||
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Rytigynia claessensii (De Wild.) Robyns | Claessens J. | Rubiaceae | BR | BR0000008855626 | Type of Vangueria claessensii De Wild. | |||
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Rytigynia claessensii (De Wild.) Robyns | Claessens J. | Rubiaceae | BR | BR0000008855527 | Type of Vangueria claessensii De Wild. | |||
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Psychotria ceratoloba (K.Schum) O.Lachenaud | Claessens J. | 1922-06 | Rubiaceae | BR | BR0000008858054 | Type of Uragoga subsessilis De Wild. | ||
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Psychotria ceratoloba (K.Schum) O.Lachenaud | Claessens J. | Rubiaceae | BR | BR0000008857996 | Type of Uragoga subsessilis De Wild. | |||
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Uragoga reygaertii De Wild. | Claessens J. | 1904-10 | Rubiaceae | BR | BR0000008900401 | Type of Uragoga reygaertii De Wild. | ||
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Triumfetta claessensii De Wild. | Claessens J. | Malvaceae | BR | BR0000008968975 | Type of Triumfetta claessensii De Wild. | |||
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Triumfetta claessensii De Wild. | Claessens J. | 1910-03 | Malvaceae | BR | BR0000008968647 | Type of Triumfetta claessensii De Wild. | ||
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Tridesmostemon omphalocarpoides Engl. | Claessens J. | Sapotaceae | BR | BR0000008966438 | Type of Tridesmostemon claessensii De Wild. | |||
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Tridesmostemon omphalocarpoides Engl. | Claessens J. | Sapotaceae | BR | BR0000008966476 | Type of Tridesmostemon claessensii De Wild. | |||
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Tetracera masuiana De Wild. & T.Durand | Claessens J. | 1909-11 | Dilleniaceae | BR | BR0000008891433 | Type of Tetracera claessensii De Wild. | ||
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Tetracera masuiana De Wild. & T.Durand | Claessens J. | Dilleniaceae | BR | BR0000008891761 | Type of Tetracera claessensii De Wild. | |||
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Tessmannia africana Harms | Claessens J. | 1921-03 | Fabaceae | BR | BR0000008923127 | Type of Tessmannia claessensii De Wild. | ||
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Tessmannia africana Harms | Claessens J. | 1921-03 | Fabaceae | BR | BR0000008923455 | Type of Tessmannia claessensii De Wild. | ||
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Terminalia macroptera Guill. & Perr. | Claessens J. | Combretaceae | BR | BR0000008873224 | Type of Terminalia claessensii De Wild. | |||
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Terminalia macroptera Guill. & Perr. | Claessens J. | 1921-09 | Combretaceae | BR | BR0000008872258 | Type of Terminalia claessensii De Wild. | ||
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Sorindeia juglandifolia (A.Rich.) Planch. ex Oliv. | Claessens J. | Anacardiaceae | BR | BR0000008822017 | Type of Sorindeia claessensii De Wild. | |||
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Sorindeia juglandifolia (A.Rich.) Planch. ex Oliv. | Claessens J. | 1910-01 | Anacardiaceae | BR | BR0000008822031 | Type of Sorindeia claessensii De Wild. | ||
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Salacia whytei var. vermoeseniana (R. Wilczek) N.Hallé | Claessens J. | 1910-07 | Celastraceae | BR | BR0000008907370 | Type of Salacia vermoeseniana R.Wilczek | ||
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Salacia whytei var. vermoeseniana (R. Wilczek) N.Hallé | Claessens J. | Celastraceae | BR | BR0000008906700 | Type of Salacia vermoeseniana R.Wilczek | |||
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Rourea thomsonii (Baker) Jongkind | Claessens J. | Connaraceae | BR | BR0000008884329 | Type of Rourea claessensii De Wild. | |||
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Rourea thomsonii (Baker) Jongkind | Claessens J. | Connaraceae | BR | BR0000008884657 | Type of Rourea claessensii De Wild. | |||
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Rinorea tortuosa Taton | Claessens J. | Violaceae | BR | BR0000006237622 | Type of Rinorea tortuosa Taton | |||
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Rinorea tortuosa Taton | Claessens J. | Violaceae | BR | BR0000006236601 | Type of Rinorea tortuosa Taton | |||
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Rinorea claessensii De Wild. | Claessens J. | 1910 | Violaceae | BR | BR0000013346218 | Type of Rinorea claessensii De Wild. | ||
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Rinorea claessensii De Wild. | Claessens J. | 1910 | Violaceae | BR | BR0000013346201 | Type of Rinorea claessensii De Wild. | ||
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Pterocarpus rotundifolius (Sond.) Druce | Claessens J. | Fabaceae | BR | BR0000008946645 | Type of Pterocarpus claessensii De Wild. |