Mats Thulin

Zygophyllum fontanesii, synonym Tetraena fontanesii, is a species of plant of the family Zygophyllaceae. It is found in Macaronesia and northwest Africa.

Zygophyllum album (synonym Tetraena alba) is a species of plant in the family Zygophyllaceae which is found in arid regions of Africa and the Arabian Peninsula. It is a salt tolerant plant and dominates many of the plant communities in which it grows.

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Cyclamen somalense, also known as the Somalian cyclamen, is a species of flowering plant within the genus Cyclamen and family Primulaceae. It is endemic to Somalia, where it is significantly isolated from other Cyclamen species. The species tolerates higher temperatures than most Cyclamen species, being substantially closer to the equator than any other species within the genus.

Namacodon schinzianum is a species of plant in the family Campanulaceae, endemic to Namibia. It was originally described by Friedrich Markgraf in 1941 as Prismatocarpus schinzianus, but was moved to its own genus, Namacodon by Mats Thulin in 1974. It is known from fewer than 20 populations, all among rocks at 800–2,000 metres (2,600–6,600 ft) altitude.

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Crotalaria socotrana is a species of plant in the family Fabaceae. It is endemic to north-central Socotra in Yemen. Its natural habitat is subtropical or tropical dry forests.

Chapmannia gracilis is a species of flowering plant in the family Fabaceae. It is endemic to north-central and northeastern Socotra in Yemen. Its natural habitat is subtropical or tropical dry forests.

Boswellia dioscoridis is a species of plant in the family Burseraceae. It is endemic to the island Socotra in Yemen. Its natural habitats are subtropical or tropical dry forests and rocky areas.

Boswellia bullata is a species of plant in the Burseraceae family. It is endemic to northwestern Socotra in Yemen. Its natural habitats are subtropical or tropical dry forests and rocky areas.

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Zygocarpum caeruleum is a species of flowering plant in the family Fabaceae. It is a shrub or tree endemic to Socotra in Yemen. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical dry shrubland.

Zygophyllum stapffii, synonym Tetraena stapffii, (Afrikaans: daalderplant, English: dollar bush) is a species of flowering bush endemic to Namibia. As of January 2025, the specific epithet was sometimes spelt with a single f, i.e. stapfii, but the International Plant Names Index spells it with double f. It grows in the Namib ecoregion along the Atlantic Ocean coast. Most of this plant's moisture comes from the morning mist. The shrub's round, coin-like leaves lend it its colloquial name: daalder is an old Dutch coin worth one and a half guilders.

Zygophyllum simplex, synonym Tetraena simplex, commonly known as hureim or simple-leaved bean caper, is a halophytic flowering plant that is distributed in arid regions of the Western Asia and Africa. It is an annual and has a history of being used in Arabic folk medicine as an anti-inflammatory.

Zygophyllum qatarense, synonym Tetraena qatarensis, is a salt-tolerant dwarf shrub that grows in the Arabian Peninsula. It has small compact leaves that store water. The leaflets grow in pairs and the flowers have four or five petals.

Plocama tinctoria is a species of flowering plant in the family Rubiaceae. It is endemic to northern Somalia and the Socotra archipelago of Yemen. Its natural habitat is subtropical or tropical dry forests. It is listed by the IUCN as a threatened species (category Least Concern) under the basionym Gaillonia tinctoria.

Plocama thymoides is a species of flowering plant in the family Rubiaceae. It is a subshrub or shrub endemic to the island of Socotra in Yemen. It grows in semi-deciduous woodland on the limestone plateau and escarpment above Qalansiyah in northwestern Socotra from 350 to 700 metres elevation. It is listed as an endangered species by the IUCN under the basionym Gaillonia thymoides.

Plocama putorioides is a species of flowering plant in the family Rubiaceae. It is subshrub endemic to the central and eastern Hajhir Mountains on island of Socotra in Yemen. It grows in low montane evergreen shrubland on granite from 900 to 1,550 metres elevation.

Plocama puberula is a species of flowering plant in the family Rubiaceae. It is endemic to the island of Socotra in Yemen. Its natural habitat is rocky areas on limestone escarpments from 30 to 650 metres elevation.

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Melocarpum is a genus of flowering plants belonging to the family Zygophyllaceae. Its native range is Ethiopia and Somalia in northeastern tropical Africa and Oman in the southern Arabian Peninsula. Species: Melocarpum hildebrandtii (Engl.) Beier & Thulin Melocarpum robecchii (Engl.) Beier & Thulin

Gunillaea is a genus of plants in the family Campanulaceae. It contains two known species, both native to tropical and southern Africa and Madagascar. Gunillaea emirnensis (A.DC.) Thulin - Madagascar, Zaire, Tanzania, Angola, Malawi, Zambia, Zimbabwe Gunillaea rhodesica (Adamson) Thulin - Zaire, Angola, Mozambique, Zambia, Zimbabwe, Botswana, Namibia, Caprivi

Erythroxylum socotranum is a species of plant. It is a part of the Erythroxylaceae family. It is endemic to southwestern Socotra in Yemen. Its natural habitat is rocky areas and is threatened by habitat loss.

Zygocarpum is a genus of flowering plants in the legume family, Fabaceae. It includes six species of shrubs and small trees native to Somalia and Socotra, and to Yemen and Oman on the southwestern Arabian Peninsula. Three species are endemic to Somalia, two to the Arabian Peninsula, and one to Socotra. Typical habitats include seasonally-dry tropical woodland, thicket, and bushland, often on limestone and less often on granite-derived or sandy soils, up to 2000 meters elevation. The genus was recently assigned to the informal monophyletic Dalbergia clade of the Dalbergieae. A dichotomous key

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Tamridaea is a genus of flowering plant in the family Rubiaceae. Its only species is Tamridaea capsulifera. It is a shrub endemic to the island of Socotra in Yemen. It is a small shrub with sweet-smelling jasmine-like flowers and emarginate corolla lobes. It drops leaves in summer and produces new leaves after rain, and flowers in winter. Its natural habitat is rocky areas, both limestone and granite, where it often grows in rock crevices from 100 to 1,100 metres elevation. The species was first described in as Mussaenda capsulifera by Isaac Bayley Balfour In 1882. It was later and

Steganotaenia commiphoroides is a species of flowering plant in the family Apiaceae. It is found in Ethiopia and Somalia.

Paramollugo is a genus of flowering plants belonging to the family Molluginaceae. Its native range is Caribbean to Guyana, Tropical and Subtropical Old World. Species: Paramollugo angustifolia (M.G.Gilbert & Thulin) Thulin Paramollugo cuneifolia (Griseb.) Thulin Paramollugo decandra (Scott Elliot) Thulin Paramollugo deltoidea (León) Thulin Paramollugo digyna (Montrouz.) Sukhor. Paramollugo elliotii Sukhor. Paramollugo nudicaulis (Lam.) Thulin Paramollugo simulans Sukhor. Paramollugo spathulata (Sw.) Sukhor.

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Iphigenia socotrana is a species of plant in the family Colchicaceae. It is endemic to the island of Socotra in the Indian Ocean, part of the Republic of Yemen. Its natural habitats are subtropical or tropical dry shrubland and rocky areas.