i06 



A GLOSSARY OF TERMS 



OB'SOLETE. Indistinct, not well de- 

 fined. 



OB'TCSE. Blunt or dull. 



OB' VOLUTE Rolled over. A form 

 of aestivation or vernation, in 

 which the margins of one leaf 

 alternately overlap those of the 

 leaf which is opposite to it. 



OCCI'PITAL. Relating or belonging 

 to the occiput. 



OC'CIPUT. The back part of the 

 head. The hind-head in opposi- 

 tion to the fore-head. 



Oc'ctusiox. Being shut up, as the 

 chick in the egg. 



OC'ELLAR. Relating to ocelli. 



OC'ELLATA. fr. lat. oculus, an eye. 

 Having marks resembling an eye. 



OC'KLLATI*. fr. lat. oculus, an eye. 

 Having marks resembling an eye. 



OC'ELLI. Lat. plur. of ocellus, a lit- 

 tle eye. 



O'CHREJS. Lat. A boot. Stipules, the 

 margins of which cohere, form- 

 ing a membranous tube which 

 sheathes the stem. (p. 34, Book 

 vii). 



OCHKA'CEOUS. ) Of the colour of yel- 



O'CHREOUS. low ochre. 



OCHROLEU'COUS. Whitish yellow, 

 cream-colour. 



OCTA'GONAL fr. gr. octo, eight; go- 

 nia, angle. Relating to an octa- 

 gon, a figure contained in eight 

 sides, and having eight angles. 



OCTAGT'NIA. fr.gr. odd, eight ; gune, 

 pistil. Name of an order of plants. 



OCTA'XDRTA. fr. gr. odd, eight ; aner, 

 stamen. Name of a class of 

 plants. 



OCTA'NUUOUS. Having eight sta- 

 mens. 



OCTOGY'JTOUS. Having eight styles. 



OCTOPLICA'TA. fr. lat.or/o. eight; pli- 

 ca' ta, folded. Having eight folds. 



OCTOPO'DIA. A tribe of cephalo- 

 pods. 



O'CTOPUS. fr. gr. oklo, eight ; pous, 

 foot. A genus of cepbalopods. 



CEDEM'EROUS. fr. gr. aided, I swell ; 

 meros, a thigh. Applied to insects 

 with enlarged and arcuate thighs. 



(ESOPHA'GEAL. Belonging to the 

 oesophagus. 



(ESOPHA'GCS. fr. gr. oiso, I carry ; 

 phagein, to eat. The gullet. The 

 membranous canal which con- 

 veys food from the mouth to the 

 stomach. 



CEs'Tni. Lat. plur. of (Estrus. 



CEsxRus. fr. gr. oistros, strong de- 

 sire ; a gad-fly. Systematic name 

 of a family of insects, (p. 59, 

 Book vi). 



ODORI'FEROUS. fr. lat. or/or, a scent $ 

 fero, I bear. Scent, or odour- 

 bearing. 



OFFICINA'LIS. fr. lat. qffidna, a shop. 

 Officinal. Applied to what is 

 ready prepared. 



OFF-SET. Propagulum. A short 

 branch of certain herbaceous 

 plants, which is terminated by a 

 tuft of leaves, and is capable of 

 taking root when separated from 

 the parent plant. 



OF'FUSCATED. Darkened, clouded, 

 dimmed. 



OGYGI'AN DELUGE. A great inunda- 

 tion mentioned in fabulous his- 

 tory, supposed to have taken place 

 in the reign of Ogyges. in Attica, 

 who died B.C. 1764. 



OID, OIDES. fr. gr. eidos, resem- 

 blance. An affix denoting resem- 

 blance, as petaloid, like a petal. 



OLD RED SANDSTONE. A formation 

 immediately below the carboni- 

 ferous group. Devonian formation. 

 (p. 37, Book viii). 



O'LEA. Lat. An olive tree. 



OLEA'GINOUS. fr. lat. oleum, oil. 

 Oily; unctuous. 



OLERA'CEOUS. Esculent, eatable. 



OLFAC'TORT. fr. lat. olfactus, the 

 smell. That which belongs or 

 relates to the sense of smell. 



OL'IGO. fr. gr.oligos, little, few. A 

 prefix denoting the number u small, 

 not indefinite. 



OLIGO'PHTLLOUS. Having but few- 

 leaves. 



OLI'VA. Lat. An olive. A genus 

 of gasteropods 



