APPENDIX 



205 



tween two nodes. 



Involucre 25 



Jnvolucel 25 



Irregular 19 



Keel. Lower petal of a pea- 

 flower. 

 Laciniate. Divided into narrow 



lobes or segments. 

 Lanceolate. Longer than broad, 



as a willow leaf. 

 Legume. A dry fruit splitting along 

 both sutures, as the pod of the 

 bean or pea. 

 Ligulate. With a strap-shaped 

 corolla, 



Ligule 24 



Lemma 26 



Limb. The expanded part of a 

 petal or corolla; as distin- 

 guished from claw or throat. 

 Linear. Long and narrow with 



nearly parallel sides. 

 Loment. A legume, usually con- 

 stricted between the seeds, 

 which breaks up into one-seeded 

 joints at maturity. 



Locullcidal 22 



Lodicules. Rudiments of the peri- 

 anth in grass flowers. 



Monadelphous 15 



Monoecious 15 



Mucronate. With a short, sharp, 



abrupt tip. 

 Nectary. That part of the flower 

 which secretes a sweetish fluid 

 called nectar, which attracts in- 

 sects and from which bees make 

 honey. 



Neutral 13 



Node. The place on stems, often 



enlarged or otherwise modified, 



where one or more leaves are 



normally borne. 



Nut. A one-seeded fruit with a 



bony indehiscent pericarp. 

 Nutlet. A diminutive nut. 

 Oblanceolate. Like lanceolate, 



but broadest towards the tip. 

 Ocrea. (Ochrea) Stipules which 

 are united into a sheath or tube 

 around the stem. 



Ovary 9 



Ovule 9 



Palet. (Palea) 26 



Palmate. Having lobes or leaflets 

 that diverge from the apex of 

 the petiole. 

 Panicle. A loose irregularly com- 

 pound flower-cluster with pedi- 

 celed flowers or spikelets. 

 Pappus. The modified parianth of 

 the composites, consisting of 

 scales, bristles, awns, etc. 

 Parietal. Borne on or pertaining 



to the wall of the ovary. 

 Pedicel. Stalk of a flower in a 



flower-cluster. 

 Peduncle. Stalk of a flower-clus- 

 ter or of a solitary flower. 

 Peltate. A leaf in which the peti- 

 ole is attached near the center 

 of the blade. 



Perennial 28 



Perfect 13 



Perfoliate. Having the leaves sur- 

 rounded the stem so as to ap- 

 pear to be pierced by it. 



Perianth 11 



Pericarp 21 



Perigynium. A sac-like bract en- 

 closing the ovary and achene in 

 Carex. 



Petal 10 



Petiole 23 



Pilose. With soft hairs. 

 Pinnate. A compound leaf with 

 the leaflets attached along both 

 sides of a central axis. 

 Pinnatifid. Pinnately cleft to the 

 middle or beyond. 



Pistil 9 



Pistillate 13 



Placenta , 9 



Pollen. Spores produced in the 

 anthers by which the ovule« are 

 fertilized. 



Polygamous 14 



Polygamo-dioecious 14 



Polypetalous. Petals not united. 

 Puberulent. Covered with min- 

 ute hairs. 

 Pubescent. Covered with short 



hairs. 

 Pubescent. Hairy; especially if 

 the hairs are soft, short, and 

 down-like. 

 Raceme. A flower-cluster consist- 

 ing of a single axis bearing 



