212 APPENDIX 
Spike. An inflorescence con- 
sisting of a simple axis with 
sessile flowers or spikelets. 
Spikelet. One of the small 
bracted spikes which make up 
the compound inflorescence of 
the grasses and’sedges (24). 
Squarrose. Spreading or re- 
curved at the end. 
Stamen. Floral organ which 
produces the pollen (8). 
Staminodium. A_ rudimentary 
stamen (11). 
Staminate. With stamens and 
without pistils (11). 
Standard. The large upper petal 
of a flower of the pea family. 
Stellate. Hairs that fork so as 
to resemble a_ conventional 
star. 
Stisina. Part. of..4 \pistil -on 
which pollen should fall to 
pollinate the flower (7). 
Stipe. A stalk by which a 
pistil or fruit is attached to 
the receptacle. 
Stipitate. With a stipe. 
Stipules. Paired appendages at 
the base of the petiole, often 
green and of the same iex- 
ture as the leaf blade (21). 
Stolon. A_ prostrate branch 
which roots at the apex and 
nodes, a runner as of the 
strawberry. 
Steloniferous. With stolons. 
Strigose. With appressed stiff 
hairs. 
Style. A filiform prolongation 
of the pistil at the end of 
which the stigma is borne (7). 
Subulate. Awl-shaped. 
Succulent. Fleshy, thick and 
juicy. 
Superior. When perianth is at- 
tached below ovary, the ovary 
is superior. 
Syngenesious. 
anthers (18). 
Terete. Circular in cross-sec- 
tion, round. 
Terrestrial. Growing in soil. 
Thyrsus or Thyrse. A contract- 
ed panicle. 
Tomentose. Densely covered 
with woolly hairs. 
Tuber. An _ enlarged  under- 
ground stem. 
Tubercle. An _ outgrowth or 
eallosity. 
Umbel. <A flower cluster with 
the branches arising from a 
common point on the main 
axis. 
Umbellet. A secondary umbel 
on the branches of an umbel. 
Utricle. A small bladdery inde- 
hiscent one-seeded fruit. 
Valvate. With edges touching 
but not overlapping. 
Vein. A strand of fibrovascular 
tissue in a leaf-blade. 
Venation. The arrangement of 
veins in a leaf. 
Vernation. The arrangement of 
leaves or perianth in the bud. 
Verticillate. With more than 
two organs as leaves in a 
whorl. : 
Villous. With long, soft hairs. 
Whorl. A circle of leaves, bracts 
or other organs arranged like - 
the spnokes of a wheel around 
a node. 
Xerephytic. Growing in very 
dry situations. 
Zygomorphic. Irregular, of flow- 
ers. 
United by the 
