All Floras      Search Specimen
Login | eFloras Home | Help
IBSC | Family List | Angiospermae

Loganiaceae R. Brown ex C. Martius

马钱科

Description from Flora of China

Trees, shrubs, woody climbers, or herbs, sometimes epiphytic, sometimes with axillary spines or tendrils. Leaves opposite, occasionally alternate, rarely verticillate, fasciculate, or in a whorl; stipules usually present, often reduced to lines connecting petiole bases, sometimes reduced to petiolar ocrea or a connate leaf-sheath; leaf blade usually entire, pinnately veined or 3--7-veined from base. Flowers in cymes, these often grouped into thyrses; cymes sometimes umbel-like, scorpioid or reduced to a single flower; bracts usually small. Flowers usually bisexual. Calyx 4- or 5-lobed; lobes free or connate, mostly persistent, imbricate or valvate. Corolla sympetalous; lobes 4 or 5(--16), valvate, imbricate or contorted in bud. Stamens inserted on corolla, included to exserted, equal in number to corolla lobes and alternating with them or sometimes fewer; filaments free, much shorter to much longer than anthers; anthers basifixed, 2--4-locular, dehiscing introrsely or extrorsely by longitudinal slits, base slightly to deeply parted. Disc ring-shaped or not. Ovary superior or rarely semi-inferior, (1- or)2(--4)-locular, placentation axillary or parietal; ovules 1 to many per locule. Style simple, terminal, persistent or deciduous; stigma usually capitate, entire or shortly 2--4-cleft. Fruit a capsule, berry, or drupe, 1- to many-seeded. Seeds sometimes winged; endosperm fleshy or horny; embryo minute, straight; cotyledons small.

Some 29 genera and about 500 species: mainly in tropical and subtropical regions of the world, absent from Europe; eight genera and 45 species (ten endemic) in China.

Li Ping-tao in Chang Mei-chen & Qiu Lian-qing, eds. 1992. Loganiaceae. Fl. Reipubl. Popularis Sin. 61: 223-309.

(Authors: Li Ping-tao; Antony J. M. Leewenberg)

Lower Taxa


 

Related Objects  

A Checklist for the South China Botanical Garden, Guangzhou, Guangdong Province, P. R. China  
  • Gelsemium rankinii (Xiangying Wen)
  • Image/JPEG
    Chinese Plant Names  
  • Buddleja asiatica (Digital Flora of Taiwan)
  • Image/JPEG
  • Buddleja asiatica (Digital Flora of Taiwan)
  • Image/JPEG
    Flora of Chile  
  • Family PDF (part 1)
  • PDF
  • Family PDF (part 2)
  • PDF
    Flora of China  
  • PDF File
  • PDF
    Interactive Keys by Xiangying Wen  
  • Buddleja asiatica (Digital Flora of Taiwan)
  • Image/JPEG
  • Buddleja asiatica (Digital Flora of Taiwan)
  • Image/JPEG
  • Buddleja davidii (Xiangying Wen)
  • Image/JPEG
  • Buddleja davidii (Xiangying Wen)
  • Image/JPEG
  • Gelsemium rankinii (Xiangying Wen)
  • Image/JPEG

     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |