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Amaryllidaceae
Amaryllidaceae image
Max Licher
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Desert Research Learning Center, Botany Program

Amaryllidaceae is a family with 73 genera and 1,605 species worldwide. In the APG III circumscription this family includes the old families of Alliaceae, Amaryllidaceae, and what is thought to be a weakly sister clade Agapanthaceae. The latter is only found in South Africa, while the other two former families, now considered subfamilies, are worldwide. There are some shared chemical characteristics but they all share a scapose inflorescence, which is an umbellate cymose construction bearing a scarious spathe. 

Herbs from a bulb with contractile roots, sometimes with sulfurous smelling compounds and reduced stems. Leaves alternate, usually 2-ranked, basal, simple, flat to terete, entire with parallel venation and sheathing at base. Determinate inflorescence, of one or more contracted helicoid cymes, appearing as a umbel, sometimes reduced to a single flowe and subtended by a few spathelike bracts. Bisexual flowers, radial to bilateral, showy with a filiform bract, 6 tepals, distinct to connate, imbricate, corona sometimes present, 6 stamens, filaments sometimes adnate to the perianth, 3 connate carpels, inferior ovary with axile placentation, nectaries in septa of ovary. Fruit a loculicidal capsule or occasionally a berry, some have seed coat with phytomelan.

Species within checklist: Santa Rita Experimental Range NEON (SRER) Plants - Desert Southwest (D14)
Allium bisceptrum
Image of Allium bisceptrum
Allium longifolium
Image of Allium longifolium
Allium macropetalum
Image of Allium macropetalum
Habranthus longifolius
Image of Habranthus longifolius
Habranthus unifolius
Images
not available
Nothoscordum bivalve
Image of Nothoscordum bivalve
NSF NEON | Open Data to Understand our Ecosystems The National Ecological Observatory Network is a major facility fully funded by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.