Croomia

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Ordo: Pandanales

Familia: Stemonaceae
Genus: Croomia
Species: C. heterosepala – C. hyugaensis – C. japonica – C. kinoshitae – C. pauciflora – C. saitoana
Name

Croomia Torr. in J.Torrey & A.Gray, Fl. N. Amer. 1: 663 (1840)
Type species: Croomia pauciflora (Nutt.) Torr. in J.Torrey & A.Gray, Fl. N. Amer. 1: 663 (1840)

Synonyms

Heterotypic
Torreya H.B.Croom ex Meisn., Pl. Vasc. Gen.: 340 (1843) nom. illeg.

References

Torrey, J. 1840. A Flora of North America: containing . . . 1(4): 663. BHL.
Govaerts, R. et al. 2014. Croomia in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2014 Nov. 26. Reference page.
Govaerts, R. et al. 2014. Croomia in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2014 Nov. 26. Reference page.
International Plant Names Index. 2014. Croomia. Published online. Accessed: Nov. 26 2014.
Tropicos.org 2014. Croomia. Missouri Botanical Garden. Published on the internet. Accessed: 2014 Nov. 26.

Croomia is a genus of primitive angiosperm herbs in the Stemonaceae family, first described as a genus in 1840.[2][3]

Taxonomy

Once included in its own family, Croomiaceae, Croomia has also previously been included in Dioscoreaceae.[4]
Subdivision

About six species.[1]

Croomia heterosepala (Baker) Okuyama - Japan
Croomia hyugaensis Kadota & Mas.Saito - Kyushu
Croomia japonica Miq. - Anhui, Fujian, Jiangxi, Zhejiang, Chugoku, Kyushu
Croomia kinoshitae Kadota - Shikoku
Croomia pauciflora (Nutt.) Torr. - United States (FL GA AL LA)[5]
Croomia saitoana Kadota - Kyushu

Distribution and habitat

Croomia is native to China, Japan, and the southeastern United States.[1] The plants grow in moist, shady woods. Their small flowers are borne beneath the leaves.[6][7]
References

Kew World Checklist of Selected Plant Families
Torrey, John. 1840. A flora of North America :containing abridged descriptions of all the known indigenous and naturalized plants growing north of Mexico, arranged according to the natural system 1(4): 663 in English
Tropicos, Croomia Torr.
Dahlgren & Clifford 1982.
Biota of North America Program 2013 county distribution map, Croomia pauciflora
Flora of North America, Vol. 26 Page 467 Croomia pauciflora (Nuttall) Torrey in J. Torrey and A. Gray, Fl. N. Amer. 1: 663. 1840.

Flora of China Vol. 24 Page 72 黄精叶钩吻属 huang jing ye gou wen shu Croomia Torrey in Torrey & A. Gray, Fl. N. Amer. 1: 663. 1840.

Bibliography

Dahlgren, Rolf; Clifford, H. T. (1982). The monocotyledons: A comparative study. London and New York: Academic Press.