e-Key v3 - Ke<span id="jodit_selection_marker_1706190547998_5682288552402162" data-jodit_selection_marker="start" style="line-height: 0; display: none;"></span>y to Boragin<span id="jodit_selection_marker_1706190547998_22045969896470674" data-jodit_selection_marker="end" style="line-height: 0; display: none;"></span>aceae Genera
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.
Backtrack a
  • Style terminal
  • Fruit a capsule, drupaceous or breaking into 4 distinct 1-seeded nutlets (mericarps) or cohering in pairs
  • Herbs, shrubs or trees
b
  • Style gynobasic, fixed on a disc-like base between nutlets or apically on a conical or pyramidal gynobase (receptacle)
  • Fruit of 1 (Trichodesma physaloides) or 4 (rarely 2 or 3 by abortion) nutlets
  • Annual or perennial herbs, occasionally shrubs
Backtrack a
  • Style undivided
  • Flowers 5-merous
  • Stigma usually ring-like below apex of style
  • Fruit breaking into 4 distinct 1-seeded nutlets or cohering in pairs
b
  • Style 2- or 4-fid
  • Flowers 4- or 5-merous
  • Stigma capitate or 0
  • Fruit a capsule or drupaceous
  • Perennial herbs, dwarf shrubs, shrubs, trees
Backtrack a
  • Flowers 4-merous
  • Fruit a capsule
  • Style 2-fid
  • Perennial herbs becoming woody at stem bases
b
  • Flowers 5-merous
  • Fruit drupaceous
  • Style 2- or 4-fid
  • Perennial herbs, shrubs or trees
Backtrack a
  • Style 2-fid, the 2 branches each terminating in a capitate stigma
  • Fruit a drupe, subglobose, with four 1-seeded stones
b
  • Style 4-fid, the 4 branches each terminating in an elongate or subcapitate stigma
  • Fruit drupaceous with one stone, up to 4-locular but only one or two locules fertile
Backtrack a
  • Style on a conical or pyramidal gynobase (receptacle)
b
  • Style fixed basally on a disc-like gynobase (receptacle)
Backtrack a
  • Calyx strongly accrescent in fruit
  • Anthers with connectives prolonging into long, twisted appendages above thecae, androecium cone-like
b
  • Calyx not or only slightly accrescent in fruit
  • Anthers without prominent terminal appendages
Backtrack a
  • Stamens exserted, filaments long
  • Corolla tube with small swellings at base
b
  • Stamens included, anthers subsessile
  • Corolla tube without a swelling at base
Backtrack a
  • Nutlets 2, outer surface of nutlet with glochidia stellately arranged
b
  • Nutlets 4
Backtrack a
  • Outer surface of nutlet verrucose
b
  • Outer surface of nutlet with glochidia (not stellately arranged)
Backtrack a
  • Inflorescence ebracteate
  • Nutlets attached to gynobase for the whole of their length
b
  • Inflorescence bracteate
  • Nutlets attached to gynobase for only part of their length
Backtrack a
  • Corolla contorted in bud
  • Anther connective prolonged into a small trulliform appendage
b
  • Corolla imbricate in bud
  • Anther connective blunt, not prolonged
Backtrack a
  • Filaments with hairs, scales or protuberances present at base
  • Corolla throat naked
b
  • Filaments without hairs, scales or protuberances
  • Corolla throat with vertical nectar guides, glandular appendages or scales
Backtrack a
  • Ring, composed of a minute collar or 5-10 minute hairy lobules, present at base of corolla tube on inside
  • Corolla irregular, bilabiate
b
  • Hairs or scales present at base of filaments
  • Corolla usually regular
Backtrack a
  • Filaments with hairs, sometimes tufted, at or near base
b
  • Filaments with densely hairy scales, ridges or protuberances at base
Backtrack a
  • Corolla throat bearing 5 well-developed, elongate, vertical nectar guides
b
  • Corolla throat without nectar guides, but with glandular appendages or scales
Backtrack a
  • Glandular appendages present in throat
  • Nutlets without a collar-like ring around base
b
  • Fornices present in throat
  • Nutlets with a distinct, thickened, collar-like ring around base