52 



GLOSSARY OR DICTIONARY OF BOTANICAL TERMS. 



Half-superior (calyx), partially enclosing 



the ovary, Fig. 73, p. 37. 

 Hastate, halberd-shaped. 

 Head, the inflorescence of the so-called 



compound flowers, Figs. 48, 49, p. 28. 

 Heart-iDood (or duramen), the older, often 



colored wood of exogenous stems. 

 Herb, a plant which dies altogether, or 



down to the ground, after maturing its 



fruit. 

 Herbaceous, having the texture of an herb, 



i.e., with little woody tissue, p. 13. 

 Hilum, the scar on the seed marking its 



former attachment to the seed-vessel, 



pp. 2, 45. 

 Hoary, grayish-white. 

 Horn, a spur or other like appendage. 

 Hybrid, a cross-breed, p. 39. 

 Hypogynous, inserted below the pistils, 



Figs. 67, 68, p. 37. 



Imbricate, overlapping one another. 

 Impari-pinnatc, unequally pinnate. 

 Incanous, hoary with white pubescence. 

 Indefinite, not uniform in number, or very 



numerous. 

 Indehiscent (fruit), not opening at maturity, 



p. 41. 

 Indeterminate inflorescence, p. 35. 

 Indian corn, its structure and germination, 



Figs. 6-9, p. 3. 

 Indigenous, native to the country. 

 Induplicate, with edges turned inward. 

 Inflorescence, the arrangement of flowers, 



p. 25. 

 Infundihidiform, funnel-shaped. 

 Innate (anther), attached by its base to 



the apex of the filament, p. 33. 

 Internode, the space between two nodes or 



joints, p. 9. 

 Introrse (anther), fixed to the side of the 



filament which looks toward the pistil, 



p. 33. 

 Involucel, the bracts at the base of a partial 



umbel, p. 28. 

 Involucre, a whorl of bracts about the base 



of a single flower, an umbel or a head. 

 Involute, rolled inward from the edges. 

 Irregular, with like parts dissimilar, as an 



irregular corolla, one with some of its 



petals unlike the others. 



Joint (or node), that part of a stem from, 

 which a leaf or leaves spring. 



Keel, a projection like the keel of a boat. 

 Kernel, p. 44. 



Labellum, the odd petal of orchidaceous 

 plants. 



Laciniate, slashed or cut into narrow lobes. 



Lanuginovs, cottony or woolly. 



Lamina (or blade), the expanded portion 

 of a leaf, p. 17. 



Leaflets, the separate blades of a com- 

 pound leaf. Fig. 30, p. 20. 



Legume, a pod which opens along both su- 

 tures, Fig. 89, p. 43. 



Lenticular, lens-shaped. 



Liber, the inner, fibrous bark of exogenous 

 plants. 



Ligulc, the strap-shaped corolla of many 

 compositse. 



Limb, the free border of a monosepalous 

 calyx or monopetalous corolla, pp. 31, 32. 



Linear, narrow and flat. 



Lip, the principal lobes of a bilabiate calyx 

 or corolla. 



Lobe, a prominent division, as of a leaf, p. 

 19. 



Loculicidal (dehiscence), opening down the 

 back of each cell, p. 43. 



Lyrate, lyre-shaped. 



3Iedtdlary I'ays, cellular tissue connecting 

 the pith and growing surface of the stem, 

 Fig. 24, p. 14. 



Mesocarp, the middle layer of the pericarp, 

 p. 40. 



Ilio'opyle, the closed orifice of the seed, p. 

 45. 



Mid-rib, p. 17. 



Mid-rein, p. 17. 



Mixed, infloi'escence, p. 81. 



Monadelphous (stamens), united by their 

 filaments into one set, p. 33. 



Monnndrous (flower), having but one 

 stamen. 



MoniUform, necklace-shaped. 



Mono'cious (plant\ one with staminate and 

 pistillate flowers on the same individ- 

 ual, p. 36. 



Monogynous, having but one pistil. 



