Download PDF
Share Embed Flag
Download ePaper

Download PDF

Download PDF Download PDF

seaweedbase.com
from seaweedbase.com More from this publisher
24.04.2013 Views

160 INTRODUCTION TO BOTANY. GONOPHORE. Gonophorum. An elongation of the receptacle of the flower, from whence the stamens and pistills arise. Annonacese, Magnoliaceae. Anthophore. Anthophorum. An elongation of the receptacle of the flower, arising from the bottom of the calyx, and throwing out by the petals, stamens, and pistills. Caryophylleae, especially in Silene. : Thecaphore. Thecaphorum, Basigynium. A gynophore from whence only one ovary arises. Phaca, Cleome. POLYPHORE. Polypliorum. A gynophore from whence several ovaries arise. Fragaria. NECTARY. Nectarium. A glandular organ, situated upon the receptacle ofthejiower, distilling peculiar juices. Position. On the receptacle, Nectarium epiclinum. To which belong the following variations Gynobasic, gynohasicum. Growing under the ovary, and not extending beyond it. Labiatse, Ruta, Cneorum tricoccum. Epigynophoric, epigynophoricum. Placed under the ovary, on the top of the gynophore. Cucubalus. Contracted, contractum. Under the ovary, and not wider than it. Aurantiacese, Cneorum tricoccum. Marginal, marginans. Broader than the base of the ovary. Menyanthes, Boraginese, Rhamnus. PI. 1 1 . fig. 5. Adherent, adherens. The edge extends along the surface of the ovary, and is united with it throughout its whole extent. Lyciura, Physalis Alkekengi, Convolvulus—sometimes this nectary can only be distinguished from the ovary by its diiferent colour, and glandular appearance. Half-adherent, semi-adherens. The edge adheres only to the bottom of the ovary, and is free at the upper part. Melampyrum, Scrofularia. Free, liherum. The edge not connected with the ovary. Menyanthes.

INTRODUCTION TO BOTANY. 161 One-sided, urdlateral. Attached to one side only of the ovary. Melampyrum arvense, Saxifraga sarmentosa. Peristomic, peristomicum. Spread over the receptacle, as far as the place from whence the stamens arise. S^pin- deae, Myrtese, Rosaceae, Leguminosse. — This nectary is found only in flowers whose calyces are gamosepalous and stamens perigynous, or in those which have only a single floral integument of one piece; and seems to push the stamens towards the opening of the calyx or perigonium. Periandric, periandricum. Placed round the stamens. Xylophylla raontana. — Found only in monadelphous flowers. Peripetalic, peripetaliim. Surrounding the corolla. Chironia frutescens. ^ Epigynous, epigynum. Placed upon the ovary. Cornus, Rubiaceae, Umbelliferae, Cucurbita esculenta. Crowning, coronans. Forming a crown upon the ovary. Compositse, Astrantia.—When this nectary is situated on the junction of the ovary with the calyx, it is difficult to distinguish it from a peristomic nectary. Campanula. Expanding, expansum. Extended upon the top of the ovary. Saxifraga hypnoides. 2. Form. Gynophore-like, Nectarium gynophoro'ideum. Rising up the ovary, like a gynophore. Creorum tricoccum, Zygophyllum Morgsana, Corchorus hirsutus.—This is usually of a closer and more glandular texture than a true gynophore. Disk-like, discoideum, disciforme. Flat, orbicular, and serving as a basis for the ovary to rest upon. Gratiola officinalis. Ringlike, annular'mm. In form of a ring. Scrofularia sambucifolia, Cestrum, Polemonium vulgare, Chironia frutescens, Passiflora caerulea. PI. 11, fig. 4. Sack-like, sacelliforme. Forming a purse in which the ovary is placed until it is fully grown. Balanites .^gyp- tiaca. Scale-like, sqiiamiforme. In the form of a scale. Gre- villea. Bunched, gihhosum. Swelled out upon one side. Salvia. Beaked, rostratum. Lengthened out in a beak upon one side. Scutellaria. PI. 11, fig. 12. Fine-toothed, denticulatiim. The edge divided into small teeth. Datura, Tatula. VOL. I. M

INTRODUCTION TO BOTANY. 161<br />

One-sided, urdlateral. Attached to one side only of the<br />

ovary. Melampyrum arvense, Saxifraga sarmentosa.<br />

Peristomic, peristomicum. Spread over the receptacle,<br />

as far as the place from whence the stamens arise. S^pin-<br />

deae, Myrtese, Rosaceae, Leguminosse. — This nectary is<br />

found only in flowers whose calyces are gamosepalous and<br />

stamens perigynous, or in those which have only a single<br />

floral integument of one piece; and seems to push the<br />

stamens towards the opening of the calyx or perigonium.<br />

Periandric, periandricum. Placed round the stamens.<br />

Xylophylla raontana. — Found only in monadelphous<br />

flowers.<br />

Peripetalic, peripetaliim. Surrounding the corolla. Chironia<br />

frutescens.<br />

^ Epigynous, epigynum. Placed upon the ovary.<br />

Cornus, Rubiaceae, Umbelliferae, Cucurbita esculenta.<br />

Crowning, coronans. Forming a crown upon the ovary.<br />

Compositse, Astrantia.—When this nectary is situated on<br />

the junction of the ovary with the calyx, it is difficult to<br />

distinguish it from a peristomic nectary. Campanula.<br />

Expanding, expansum. Extended upon the top of the<br />

ovary. Saxifraga hypnoides.<br />

2. Form.<br />

Gynophore-like, Nectarium gynophoro'ideum. Rising up<br />

the ovary, like a gynophore. Creorum tricoccum, Zygophyllum<br />

Morgsana, Corchorus hirsutus.—This is usually<br />

of a closer and more glandular texture than a true gynophore.<br />

Disk-like, discoideum, disciforme. Flat, orbicular, and<br />

serving as a basis for the ovary to rest upon. Gratiola<br />

officinalis.<br />

Ringlike, annular'mm. In form of a ring. Scrofularia<br />

sambucifolia, Cestrum, Polemonium vulgare, Chironia<br />

frutescens, Passiflora caerulea. PI. 11, fig. 4.<br />

Sack-like, sacelliforme. Forming a purse in which the<br />

ovary is placed until it is fully grown. Balanites .^gyp-<br />

tiaca.<br />

Scale-like, sqiiamiforme. In the form of a scale. Gre-<br />

villea.<br />

Bunched, gihhosum. Swelled out upon one side. Salvia.<br />

Beaked, rostratum. Lengthened out in a beak upon<br />

one side. Scutellaria. PI. 11, fig. 12.<br />

Fine-toothed, denticulatiim. The edge divided into small<br />

teeth. Datura, Tatula.<br />

VOL. I. M

logo

products

Resources

Company

Terms of service
Privacy policy
Cookie policy
Cookie settings
Imprint
Change language
Made with love in Switzerland
© 2024 Yumpu.com all rights reserved

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!