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

Engelhardia Lesch. ex Bl.

黄杞属

Description from Flora of China

Pterilema Reinwardt.

Trees deciduous, semievergreen or evergreen, monoecious or rarely dioecious. Branchlets with solid pith. Terminal buds oblong, naked. Leaves even-pinnate, rarely odd-pinnate; leaflets 2-14, margin entire or serrate. Inflorescences lateral or terminal on old or new growth: male and female spikes in androgynous panicles or separate; male spikes solitary or clustered, pendulous; female spike many flowered, erect or recurved in fruit. Flowers anemophilous. Male flowers with a 3-lobed bract; bracteoles 2, rarely absent; sepals 1-4, rarely absent; stamens 3-15, anthers glabrous or pubescent. Female flowers subtended by an enlarged, 3-lobed bract; bracteoles 2, united, reduced to a low rim or forming a conspicuous, anterior prophyll, adnate to base of ovary; sepals 4, adnate to ovary, free at apex; style absent or elongate; stigmas carinal or commissural, 2-lobed, with 2 or 4 plumose branches, or short and 4-lobed. Fruiting spike elongate, pendulous. Fruit a 3-winged nutlet, (2-)4-chambered at base. Germination epigeal.

About seven species: S and SE Asia, N India; four species (one endemic) in China.

The number of species of Engelhardia is open to question: more than ten have been recognized in SE Asia. The taxonomy of the genus suffers from a lack of good specimens from throughout its range.


 

Related Objects  

Flora of China  
  • PDF File
  • PDF

    IBSC @ efloras.org
    Browse by
    Family
    Genera
    Search by name

    Specimen Search

    People @ IBSC

     

     

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