Cytinus

Cytinus
Cytinus ruber from Sardinia
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malvales
Family:	Cytinaceae
Genus:	Cytinus L.
Species
See text

Cytinus is a genus of parasitic flowering plants. Species in this genus do not produce chlorophyll, but rely fully on its host plant. Cytinus usually parasitizes Cistus and Halimium , two genera of plants in the family Cistaceae. It has also been found on Ptilostemon chamaepeuce.

Several species are found in the Mediterranean Region, South Africa, with a possibly undescribed species from Madagascar. ^[1]

Biology

C. capensis and C. sanguineus are dioecious, while C. hypocistis is monoecious. ^[2]

C. hypocistis has been shown to infect mainly Halimium halimifolium and Cistus monspeliensis in Portugal. ^[3]

Systematics

The genus Cytinus was previously included in the parasitic family Rafflesiaceae, but is now put into the family Cytinaceae ^[2] (order Malvales), together with the genus Bdallophytum with four species.

Cytinus ruber is no longer considered a separate species, but is now a subspecies of C. hypocistis.

Uses

The flower of C. hypocistis

The young C. hypocistis is cooked as an asparagus substitute and an extract has been used in herbal medicine for dysentery, throat tumors and as an astringent. ^[4] C. ruber is also edible and was used in folk medicine as an emmenagogue. ^[5]

Species

Image	Scientific name	Distribution
	Cytinus baronii Baker f.	Madagascar.
	Cytinus capensis Marloth	South Africa
	Cytinus glandulosus Jum.	Madagascar.
	Cytinus hypocistis (L.) L.	Mediterranean from Morocco to southern France and Turkey
	Cytinus malagasicus Jum. & H.Perrier	Madagascar.
	Cytinus ruber (Fourr.) Fritsch	Mediterranean
	Cytinus sanguineus (Thunb.) Fourc.	South Africa
	Cytinus visseri Burgoyne	South Africa

Footnotes

1. parasiticplants.siu.edu: Cytinaceae
2. Nickrent et al. 2004
3. Thorogood & Hiscock 2007
4. "Cytinus hypocistis (Rafflesiaceae)". Dr. Duke's Phytochemical and Ethnobotanical Databases. National Agricultural Library. Archived from the original on September 28, 2021.
5. The University of Reading: Cytinus hypocistis Archived July 21, 2011, at the Wayback Machine

References

• Govaerts, R. & Nickrent, D.L. (2010): 658. Cytinus ruber Cytinaceae. Bot. Mag. 26(4): 314–321.
• Nickrent, Daniel L; Blarer, Albert; Qiu, Yin-Long; Vidal-Russell, Romina; Anderson, Frank E (2004). "Phylogenetic inference in Rafflesiales: the influence of rate heterogeneity and horizontal gene transfer". BMC Evolutionary Biology. 4 (1): 40. doi: 10.1186/1471-2148-4-40 . PMC   528834 . PMID   15496229.
• Sanjust, Enrico; Rinaldi, Andrea C. (2021). "Cytinus under the Microscope: Disclosing the Secrets of a Parasitic Plant". Plants. 10 (1): 146. doi: 10.3390/plants10010146 . PMC   7828134 . PMID   33445677.
• Thorogood, C. J.; Hiscock, S. J. (2007). "Host specificity in the parasitic plant Cytinus hypocistis". Research Letters in Ecology. 2007: 1–4. doi: 10.1155/2007/84234 .

Further reading

• Burgoyne, P.M. (2006): A new species of Cytinus (Cytinaceae) from South Africa and Swaziland, with a key to the Southern African species. Novon16(3): 315–319. Abstract Archived 2012-03-14 at the Wayback Machine

External links

• Cytinaceae References
• Parasitic Plant Connection: Cytinaceae