Gallery

disseminule type

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Pennisetum macrourum

ventral view of fertile floret showing margins of lemma enclosing palea (left); spikelet subtended by primary bristle showing upper glume and fertile lemma (right).

Pennisetum macrourum

caryopses in ventral view (left) and dorsal view (right)

Pennisetum macrourum

A, spikelet cluster in fascicle; B, spikelet showing lower glume and sterile lemma; C, spikelet showing upper glume and fertile lemma; D, floret; E, caryopsis in ventral view; F, caryopsis in dorsal view; drawing by Lynda E. Chandler

Pennisetum pedicellatum

fascicles of bristles enclosing one or more spikelets each


Pennisetum pedicellatum

florets in dorsal view showing lemma (top) and ventral view showing palea (bottom)

Pennisetum pedicellatum

caryopses in ventral view (left) and dorsal view (right)

Pennisetum pedicellatum

A, fascicle of bristles enclosing spikelet(s); B, cluster of two spikelets in fascicle (some bristles removed); C–D, floret in two views; E, caryopsis in ventral view; F, caryopsis in dorsal view; drawing by Lynda E. Chandler


Pennisetum polystachion

florets in dorsal view showing lemma (left) and ventral view showing palea (right)


Pennisetum polystachion

caryopses in dorsal view (left) and ventral view (right); photo by Mark Thurmond

Pennisetum polystachion

A, fascicle of bristles enclosing spikelet; B, spikelet in dorsal view showing upper glume; C, spikelet in ventral view showing sterile lemma; D, floret in ventral view; E, floret in dorsal view; F, caryopsis in ventral view; G, caryopsis in dorsal view; drawing by Lynda E. Chandler


Prosopis alpataco

A, fruit; B, one-seeded endocarp segment; C, seed; D, longitudinal section of seed showing embryo; E, transection of seed; drawing by Lynda E. Chandler



Prosopis argentina

A, pod; B, one-seeded fruit segment; C, seed; D, longitudinal section of seed showing embryo; E, transection of seed; drawing by Lynda E. Chandler


Prosopis articulata

A, pod; B, one-seeded fruit segment; C, seed; D, longitudinal section of seed showing embryo; E, transection of seed; drawing by Lynda E. Chandler