A GLOSSARY OF TERMS 



HAR'ENGUS. Lat. The herring. 



HAHMO'PHONOUS. fr. gr. armos, a 

 joint; phuinomai, to appear. Ap- 

 plied to crystals in which the 

 lines of junction or joints are 

 visible. 



HAR'PA. Lat. A harp. 



HARPT'IA. Lat. fr. gr. arpitx, rapa- 

 cious. A harpy. 



HA'STATE. fr. lat. hastatus, spear- 

 shaped. Applied to leaves which 

 have three lance-shaped lobes, 

 (p. 36, Book vii). 



HASTA'TO-LAN'CEOLATE. Between 

 halbert-shape and lanceolate. 



HASTATO-SAGITTATE. Between hal- 

 bert-shape and arrow-shape. 



HAULM. Dead stems of herbs. 



HATJS'TELLATE. fr. lat. hau&tellum, a 

 little sucker. Applied to insects 

 that live by suction. 



HEAD. A dense, round collection 

 of flowers which are nearly ses- 

 sile. 



HEART-WOOD. Duramen. The hard, 

 interior portion of the stern and 

 branches of exogenous trees. 



HELIA'NTHTTS. fr. gr. elios, the sun ; 

 (intlios, flower. The sun-flower. 



HE'LICES. Lat. plur. of helix. 



HELICI'NA. A genus of gasteropods. 



HE'LIX. fr. gr. elix, a spiral, a whorl. 

 Name of a genus of gasteropods. 

 (p. 39, Book v). 



HELMET. The concave upper lip 

 of a labiate flower. 



HELMINTHO'LOGY. fr. gr. elmins, a 

 worm ; logos, a discourse. That 

 branch of zoology which treats of 

 worms. 



HEMACH'RTMA. fr. gr. aima, blood; 

 krumos, cold. Applied to animals 

 which have cold blood. 



HEMI. fr. gr. emisus, half. A pre- 

 fix, synonymous with the Lat. 

 semi, half. 



HEMI'CARP. The separated carpel 

 of a cremocarp. 



HEMI'CTCLO'STOMA. fr. gr. emisus, 

 half; kuklos, round ; stoma, mouth. 

 Name of a tribe of gasteropods. 

 (p. 49, Book v). 



, a sheath. 

 A wing, of which one half is 

 opaque and firm, like an elytrum. 

 HEMI'GAMOUS. fr. gr. gamos, mar- 

 riage. Applied to grasses when 

 one of two florets on the same 

 spikelet is either staminate or 

 pistilate, and the other floret is 

 neither. 



HEMIP'TERA. fr. gr. 'emisus, half, 

 pteron, wing. Name of an order 

 of insects. 



HEMIP'TERA. Lat. plur. of hsemip' 

 tera. 



HEMI'SPHEHE. fr. gr. emisus, half; 

 sphaira, sphere or globe. One 

 half of a sphere or globe, or glo 

 bular body; the brain is divided 

 into two hemispheres. 



HEMI 'TROPE. fr. gr. trepd, to turn. 

 Applied to twin crystals. 



HEPTAGY'NIA fr. gr. hepta, seven ; 

 gune, pistil. Name of an order 

 of plants, (p. 103, Book vii). 



HEPTA'TREMCS. fr. gr. hepta, seven ; 

 trema, a hole or perforation. Ge- 

 neric name of certain fishes of 

 the order of cyclostorni. 



HERB. All that portion of a plant 

 which is not included in the root, 

 or in the fructification ; as the 

 stem, leaves, &o. A plant which 

 has not a woody stem. 



HERBA'CEOUS. In botany: herb- 

 like; that perishes every year. 

 An annual stem. Not woody. 



HERBA'CEUM. Lat. Herbaceous. 



HERBAGE. Every part of a plant 

 except the root and fructification. 



HERBA'RIUM. -A collection of .spe- 

 cimens of plants carefully dried 

 and preserved. 



HERBI'VORA. Lat. Herbivorous. 



HERBIVOROUS. fr. \&t.herba, plants ; 

 voro, 1 eat. Plant-eating; applied 

 to animals that feed on vegetables. 



HERMA'PHRODITE. fr. gr.ernies. Mer- 

 cury; aphrodite, Venus. An orga- 

 nized body combining in reality, 

 or appearance, the characteristics 

 of both sexes. 



HERPE'TOLOGT. fr. gr. erpeton, a 



