Flora of the Sudan

Name: Flora of the Sudan
Author: Broun, A. F. (Alfred Forbes)

Broun, A. F. (Alfred Forbes)

Plant names, Popular -- Sudan; Plants -- Sudan

dd) Disk present, perigynous; leaves mostly stipulate; ovary
    2-4-celled; ovules erect; seeds mostly with copious endosperm and
    large straight embryo.

                                                             =Rhamnaceæ=

    ddd) Disk present; leaves exstipulate:

     e) Ovules erect; ovary 1-3-celled; calyx conspicuous.

                                                              =Olacaceæ=

     ee) Ovules pendulous; ovary 1-celled; calyx minute.

                                                             =Opiliaceæ=

  bb) Leaves pellucid-punctate:

   c) Leaves simple, without stipules; ovules numerous on a free central
   placenta; no tendrils.

                                                            =Myrsinaceæ=

   cc) Leaves mostly compound, usually stipulate; inflorescence leaf-
   opposed; ovules 1-2 in each cell, inserted on the inner angle;
   tendrils often present.

                                                           =Ampelidaceæ=

 aa) Perfect stamens the same number as the petals and alternate with
 them or more numerous, very rarely fewer:

  b) Style basal; stipules mostly persistent; leaves simple; stamens
  numerous; stomata of the leaves usually with special subsidiary cells.

                                                               =Rosaceæ=

  bb) Style or styles terminal or subterminal, sometimes gynobasic:

   c) Flowers markedly zygomorphic (irregular); lower sepal more or less
   elongated into a spur; sepals usually 3; anthers connivent around the
   ovary, opening lengthwise; seeds without endosperm.

                                                          =Balsaminaceæ=

   cc) Flowers actinomorphic or very slightly zygomorphic:

    d) Stamens united into more than one separate bundle (phalanges)
    often opposite the petals; leaves usually opposite, often gland-
    dotted or with resinous lines:

     e) Leaves opposite, exstipulate:

      f) Herbs or shrubs; styles free from the base or nearly so;
      flowers hermaphrodite; calyx imbricate.

                                                           =Hypericaceæ=

      ff) Trees or shrubs; styles mostly more or less united or stigma
      one and sessile or sub-sessile; flowers mostly unisexual; calyx
      imbricate.

                                                             =Guttiferæ=

     ee) Leaves alternate, stipulate; trees, shrubs or herbs; calyx
     valvate; hairs usually stellate:

      f) Stamens with some of the filaments sterile; fruits not hooked.

                                                          =Sterculiaceæ=

      ff) Stamens all fertile; fruits covered with hooks.

                                                              =Tiliaceæ=

    dd) Stamens free (at least not united into several bundles) or
    sometimes more or less united at the base or into one bundle
    (monadelphous):

     e) Leaves opposite or verticillate or rarely fasciculate, never all
     radical:

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Flora of the Sudan

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