The new international encyclopaedia . lmost to the time of parturi-tion. Some fishes are ovoviviparous, and so aresome reptiles. These distinctions are much lessimportant than was formerly , ;. See See Ovary. OVOLO (It., from MI^. ovnlum. diminutiveof Lat. ovum. egg). A convex molding muchused in classic architecture and in succeedingstyles. (See ) In Roman architecture,the ovolo is an exact quarter of a circle; in Greekarchitecture, the curve is sharper at the top andquirked. OVULATION. See Ovary. OVULE (Fr. ovule, from ML. orulum. little egg). The s
The new international encyclopaedia . lmost to the time of parturi-tion. Some fishes are ovoviviparous, and so aresome reptiles. These distinctions are much lessimportant than was formerly , ;. See See Ovary. OVOLO (It., from MI^. ovnlum. diminutiveof Lat. ovum. egg). A convex molding muchused in classic architecture and in succeedingstyles. (See ) In Roman architecture,the ovolo is an exact quarter of a circle; in Greekarchitecture, the curve is sharper at the top andquirked. OVULATION. See Ovary. OVULE (Fr. ovule, from ML. orulum. little egg). The structure which in seed-plants (sper- matophvtes) becomes a seed. The name refers to the old misteken belief that the ovule of a OVULE. 168 OWATONNA. plant represents the egg of an animal, and thatit is fertilized and so produces a new plant. Thename has been so long in use that it is still re-tained, although its real meaning makes it veryinappropriate. Really it is a spore-ease (sporan-gium, ), and is entirely sexless. In gymno-. KiG. 1. OVrLE. showing int€|^unient8 (/)• ie), antipodal cells(a),polar nuclei fu»iUK(/>). synergide (fi),egg (o). and pollentube {m) containing male cetle. sperms (pines and their allies) the o^Tiles arefreely exposed, while in angiosperms (floweringplants) they are inclosed in the bulbous part(ovary) of the pistil, but in both eases theirstructure is the same. The central body of ano^ule (Fig. 1) is the nucflliis, and enwrappingit there are one or two coats called the integu-ments. At the apex of the niicellus the integu-ments leave a small passageway (micropyle, lit-
Size: 1560px × 1602px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookdecade1900, bookpublishernewyorkdoddmead
