H the secondary floral axes give rise to tertiary ones, the raceme is branching, and forms a panicle, as in Yucca gloriosa.
Long, and occur 2 to 4 in a raceme; when in unusual numbers they may be terminal in position.
Bog-asphodel (Narthecium ossifragum), a member of the same family, is a small herb common in boggy places in Britain, with rigid narrow radical leaves and a stem bearing a raceme of small golden yellow flowers.
- Raceme of Linaria striata.
8, is elongated, and gives off pedicels, ending in single flowers, a raceme is produced, as in currant, hyacinth and barberry.
If in a raceme the lower flowerstalks are developed more strongly than the upper, and thus all the flowers are nearly on a level, a corymb is formed,which may be simple, as in fig.
Thus we may have a group of racemes, arranged in a racemose manner on a common axis, forming a raceme of racemes or compound raceme, as in Astilbe.
Again, there may be a raceme of capitula, that is, a group of capitula disposed in a racemose manner, as in Petasites, a raceme of umbels, as in ivy, and so on, all the forms of inflorescence being indefinite in disposition.
A l, a 2, a3, a4, &c., separate axes successively developed in the axils of the corresponding bracts b 2, 3, b4, &c., and ending in a flower f2, f 3, f 4, &c. The whole appears to form a simple raceme of which the axes form the internodes.
In Saxifraga umbrosa (London-pride) and in the horse-chestnut we meet with a raceme of scorpioid cymes; in sea-pink, a capitulum of contracted scorpioid cymes (often called a glomerulus); in laurustinus, a compound umbel of dichasial cymes; a scorpioid cyme of capitula in Vernonia scorpioides.
Elongated form(Raceme), Hyacinth, Laburnum,Currant.
Compound Spadix, Palms. c. Compound Raceme, Astilbe.
Raceme of Capitula, Petasites.
Raceme of Umbels, Ivy.
Raceme of Scorpioid Cymes, Horse-chestnut.
Tofieldia, an arctic and alpine genus of small herbs with a slender scape springing from a tuft of narrow ensiform leaves and bearing a raceme of small green flowers; Narthecium (bog-asphodel), herbs with a habit similar to Tofieldia, but with larger golden-yellow flowers; and Colchicum, a genus with about 30 species including b the meadow saffron or autumn crocus (C. autumnale).
The flowers are borne in a terminal raceme, the anthers open introrsely and the fruit is a capsule, very rarely, as in Dianella, a berry.
Short spikes may fall from the culm as a whole; or the axis of a spike or raceme is jointed so that one spikelet falls with each joint as in many Andropogoneae and Hordeae.
(3 Spikelets crowded in two close rows, forming a one-sided spike or raceme with a continuous (not jointed) rachis.