| 词条 | Ceanothus masonii |
| 释义 |
|name = Mason's ceanothus |image = Ceanothus masonii 01.jpg |image_caption = fruits |regnum = Plantae |unranked_divisio = Angiosperms |unranked_classis = Eudicots |unranked_ordo = Rosids |ordo = Rosales |familia = Rhamnaceae |genus = Ceanothus |species = C. masonii |binomial = Ceanothus masonii |binomial_authority = McMinn [1] |}} Ceanothus masonii is a species of shrub in the buckthorn family, Rhamnaceae, known by the common name Mason's ceanothus. It is endemic to Marin County, California, where it is known only from an area near Bolinas on the Point Reyes National Seashore. It grows in the coastal chaparral on the windblown bluffs.. DescriptionThis rare shrub grows to heights approaching 2 meters. The evergreen leaves are oppositely arranged and less than 2 centimeters long. They are round to oval in shape and have tiny, sharp teeth along the edges, sometimes spine-tipped. The inflorescence is a small cluster of deep blue to purple flowers. The fruit is a capsule just a few millimeters wide, topped with minute horns. This ceanothus is closely related to Ceanothus gloriosus, and may in fact be a variety of that species.[2] References1. ^Species was originally described and published in Madroño; Journal of the California Botanical Society. Berkeley. 6: 171. 1942 {{ cite web |url=http://www.ipni.org:80/ipni/idPlantNameSearch.do?id=50730-2 |title=Plant Name Details for Ceanothus masonii |quote=Distribution: California (Southwestern U.S.A., Northern America) |work=IPNI |accessdate=July 17, 2010}} 2. ^California Native Plants Society Rare Plants Inventory External links
7 : Ceanothus|Endemic flora of California|Natural history of the California chaparral and woodlands|Natural history of Marin County, California|West Marin|Plants described in 1942|Endemic flora of the San Francisco Bay Area |
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