半日花科

半日花科（学名：）属真双子叶植物锦葵目，共包括8属约170-200余种。

分布
本科主要分布在北温带气候干旱、阳光比较强烈的地区，如地中海沿岸、北美，也有少数种分布在南美。中国只有一属一种—半日花（Helianthemum polifolium DC.），主要分布在新疆、内蒙一带。

特征
本科大部分为灌木或亚灌木，也有部分种为草本或大喬木，被有星状毛；单叶对生或有时互生；花两性，辐射对称，花瓣5，偶有3，花开放的时间很短就凋谢，因此得名；果实为蒴果。

本科植物由于对土壤要求不高，被广泛种植在园林中。其根常有块菌共生，因也常被欧洲人用来培植块菰。有的品种也可以提炼香精。

分类
1981年的克朗奎斯特分类法将半日花科分到堇菜目中，1998年根据基因亲缘关系分类的APG 分类法将其列入锦葵目。

化石紀錄
†Cistinocarpum roemeri是來自漸新世中期發現於德國的宏觀化石，被描述為現存半日花科的祖先。Tuberaria屬的化石被發現於上新世的德國。

参考文献

• Chevalier, G., D. Mousain, Y. Couteaudier (1975). Associations ectomycorhiziennes entre Tubéracées et Cistacées. Annales de Phytopathologie 7(4), 355-356.
• Ferrandis, P., J. M. Herrantz, J. J. Martínez-Sánchez (1999). Effect of fire on hard-coated Cistaceae seed banks and its influence on techniques for quantifying seed banks. Plant Ecology 144 (1): 103-114. (Available online: [http://dx.doi.org/10.1023/A:1009816309061 DOI] | [http://ipsapp007.kluweronline.com/IPS/content/ext/x/J/5220/I/27/A/4/abstract.htm Abstract] | [http://ipsapp007.kluweronline.com/content/getfile/5220/27/4/fulltext.pdf Full text (PDF)])
• Giovannetti, G., A. Fontana (1982). Mycorrhizal synthesis between Cistaceae and Tuberaceae. New Phytologist 92, 533-537.
• Heywood, V. H. (ed.) (1993). Flowering plants of the world, pp. 108–109. London: Batsford. ISBN 0-19-521037-9.
• Hutchinson, J. (1973). The families of flowering plants: arranged according to a new system based on their probable phylogeny (3rd ed.), pp. 254–255. Oxford: Clarendon. ISBN 0-19-854377-8.
• IPNI (2004). The International Plant Names Index - [http://www.ipni.org/ipni/plantsearch?find_family=Cistaceae&find_isAPNIRecord=on&find_isGCIRecord=on&find_isIKRecord=on&output_format=normal&query_type=by_query Record on Cistaceae]. Retrieved Nov. 15, 2004.
• Judd W. S., C. S. Campbell, E. A. Kellogg, P. F. Stevens, M. J. Donoghue (2002). Plant Systematics: A Phylogenetic Approach, 2nd edition, pp. 409–410 (Cistaceae). Sunderland, Massachusetts: Sinauer Associates. ISBN 0-87893-403-0.
• Jussieu, Antoine Laurent de (1789). Genera Plantarum: 294. Parisiis.
• Kew (2004). [https://web.archive.org/web/20070929133457/http://www.kew.org/cgi-bin/web.dbs/genlist.pl?CISTACEAE List of genera in Cistaceae], in [https://web.archive.org/web/20041118100118/http://www.rbgkew.org.uk/data/genlist.html Vascular Plant Families and Genera Database], Royal Botanic Gardens, Kew. Retrieved Nov. 15, 2004.
• Mabberley, D. J. (1997). The plant-book: a portable dictionary of the vascular plants (2nd ed.), p. 160. New York: Cambridge University Press. ISBN 0-521-41421-0.
• Thanos, C. A., K. Georghiou, C. Kadis, C. Pantazi (1992). Cistaceae: a plant family with hard seeds. Israel Journal of Botany 41 (4-6): 251-263. (Available online: [https://web.archive.org/web/20041205134307/http://www.biology.uoa.gr/~cthanos/Papers/Abstracts/Cistaceae.htm Abstract] | [https://web.archive.org/web/20040609052539/http://www.biology.uoa.gr/~cthanos/Papers/Cistaceae.pdf Full text (PDF)])

外部链接

• [https://web.archive.org/web/20041010190304/http://www.cistuspage.org.uk/BIBLIOG-Alphabetical.htm 网站关于半日花科]
• [http://www.mobot.org/MOBOT/research/APweb/ Angiosperm Phylogeny 网站关于半日花科] ([http://www.mobot.org/MOBOT/Research/APweb/orders/malvalesweb.htm#Cistaceae Cistaceae]). Version 5, May 2004.
• 在[https://web.archive.org/web/20070103200438/http://delta-intkey.com/angio/ L. Watson和M.J. Dallwitz (1992年)《有花植物分科》]中的[http://delta-intkey.com/angio/www/cistacea.htm 半日花科]