GLOSSARY. 



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Tntrorse. Turned inward or toward the axifl. 

 Jnroluccl. A secondary involucre, u« that of 



an umbellet in Umhellilera?. 

 InrulucvUali, Ilaviug an involucel. 

 Involucral. Belonging to an involucre, 

 Incolucrate. Having an involucre. 

 Involucre. A circle or collection of bracts 



Hurrounding u (lower cluster or head, or a 



single dower. 

 Involute. Rolled inward. 

 Irrnjular (tiower). :?howing inequality in 



the size, forui, or union of its similar parts. 



Jufaceous. Resembling a catkin in ap- 

 pearance. 



Keel. A central dorsal ridge, like the keel of 

 a boat; tlie two anterior united petals of a 

 papilionaceous flower. 



Kidney -shaped. Crescentic with the ends 

 broad and rounded ; reniform. 



Labiate. Lipped ; belonging to the Labiatse. 



Lacerate. Irregularly cleft as if torn. 



Laciniate. Slashed ; cut into narrow pointed 

 lobes. 



Lamella. A thin flat plate or laterally flat- 

 tened ridge. 



Lanceolate. Shaped like a lance-head, 

 broadest above the base and narrowed to 

 the apex. 



Lateral. Belonging to or borne on the side. 



Lax. Loose and slender. 



Leaflet. A single division of a compound 

 leaf. 



Legume. The fruit of the I>eguminosae, 

 formed of a simple pistil and usually dehis- 

 cent by both sutures. 



Lef/uminoiis. Pertaining to a legume or to 

 th«' Leguminoste. 



Lenticular. licntil-shaped ; of the shape of 

 a double-convex lon.s. 



Lfjiidote. Beset with small scurfy scales. 



Li(/ulate. Furnished with a ligule. 



Li(/ule. A strap-shaped corolla, as in the 

 ray-flowers of Compositai : a thin ecarious 

 projection from the summit of the sheath 

 in Gni.xses. 



I/diannuK. Lily-like ; belonging to the 

 Liliaceae. 



Limit. The expanded portion of a gamopet- 

 alous corolla, above the throat ; the ex- 

 panded portion of any petal, or «>f a leaf. 



Linear. I/>ng and narrow, with parallel 

 margins. 



Lip. E ich of the upper and lower divisions 

 of a bilahiate corolla or calyx ; the peculiar 

 upper petal in Orchids. 



Lobe. Any segment of an organ, especially 

 if rounded. 



Lobfd. Divided into or bearing lobes. 



-locular. In composition, having cells. 



lA^ruliciilal . Dehiscent into the cavity of a 

 cell through the dorsal suture 



Lunate. Of the shape of a half-moon or 



crescent. 

 LuHulate. Diminutive of Lunat«. 

 Lyrate. IMnnatifid with a large and rounded 



terminal lobe, and the lower lobes small. 



Macrosport. The larger kind of spore in 

 Selaginellaceoe, etc. 



MarcrHcent. Withering but persistent. 



Marginal. Along or near the edge. 



Manjinale. Furni.slied with a border pe- 

 culiar in texture or appearance. 



Mealy. Farinaceou.s. 



Membranaceous, Mtmbranous. Thin and 

 rather soft and more or k-.^s translucent. 



Meui.scoid. Concavo-convex. 



Mericarp. One of the acbcue-like carpels of 

 Umbelliferae. 



-merous. In composition, having parts, as 

 2nierous, having two parts of carh kind. 



Micropyle. The point upon the seed at 

 which was the orifice of the ovule. 



Microspore. The smaller kind of spore in 

 i-'elaginellaceae, etc. 



Midrib. The centnil or main rib of a leaf. 



Mitriform. Shaped like a mitre or cap. 



Monadelphous (stamens). United by their 

 filaments into a tube or column. 



Moniliform. Re.«enibling a string of beads ; 

 cylindiical with contractions at intervals. 



Monocot yledonous. Having but one coty- 

 ledon. 



Monoecious. With stamens and pistils in 

 separate flowers on the same plant. 



Mucilaginous, t'limy ; containing mucilage. 



^fucro. A short and small abrupt tip. 



Mucronnte. Tijijied with a mucro. 



Multifid. Cleft into many lobes or segments. 



Muricate. Rough with short hard points. 



Muriculate. Very finely muricate. 



Naked. Bare; without the usual covering or 

 appendages. 



Nectary. Any place or organ where nectar 

 is secreted. 



Nectariferous. Producing nectar. 



Nerve. A simple or unbranched vein or 

 slender rib. 



Node. The place upon a stem which nor- 

 mally bears a leaf or whorl of leaves. 



Nodose. Knotty, or knobby, 



Nuch'its. The germ-cell of the ovule, which 

 by fertilization becomes the seed; the ker- 

 nel of a seed. 



Numerous. Indefinite in number. 



Nut. A hard indehis«'ent Icelleil and 1- 

 BtH'ded fruit, though usually resulting from 

 a compound ovary. 



Nutlet. A diminutive nut. 



Ob-. A Latin prefix, usually carrying the 



idea of inversion. 

 OlTom/in ssi'd. Compressed dorso vcntrally 



instead of laterally 



