Question

Hi❤

Describe about types of ovules.

⚡ #Himachali forever ⚡

Answer 1

$\huge\bold{Types\: of\: Ovules}$
_______________________________

(1) Orthotropous Ovule:-

The body of the ovule is erect and straight .
The hilium, chilaza and micropyle lie in a straight.

Eg:- $\bold{Polygonum}$

(2). Anatropous Ovule:-

the body of the ovule becomes completely inverted during the development so that micropyle lies so close to the hilium.

Eg:- $\bold{Gemapetale}$ members

(3). Hemi - anatropous ovule:-

The body of the ovule is placed transversely at right angles to the funicle. The micropyle and chalaza lie in one straight line e.g.$\bold{Ranunculus}$

(4). Amphitropous ovule:-

The curvature of the ovule is very much pronounced and the embryosac also becomes curved e.g.$\bold{Allismaceae}$, and $\bold{Butomaceae}$

(5). Camylotropous ovule:-

The body of the ovule is curved or bent round so that the micropyle and chalaza do not lie in the same straight line. e.g. $\bold{Leguminosae}$

(6). Circinotropous ovule:-

The nucellus and the axis are in the same line in the beginning but due to rapid growth on one side, the ovule becomes anatropous. 

Eg:- $\bold{Optuntia}$
________________________________

⭐HOPE IT HELPS YOU⭐

Answer 2

 

ʜᴇʏᴀ..

ᴛʜᴇʀᴇ ᴀʀᴇ sɪx ᴋɪɴᴅs ᴏғ ᴘʟᴀɴᴛ ᴏᴠᴜʟᴇsʙᴀsᴇᴅ ᴏɴ ᴛʜᴇɪʀ sʜᴀᴘᴇs. 1. ᴏʀᴛʜᴏᴛʀᴏᴘᴏᴜs, ᴀʟsᴏ ᴄᴀʟʟᴇᴅ ᴀᴛʀᴏᴘᴏᴜs - ᴛʜᴇ ʙᴏᴅʏ ᴏғ ᴛʜᴇ ᴏᴠᴜʟᴇ ɪs sᴛʀᴀɪɢʜᴛ sᴏ ᴛʜᴀᴛ ᴛʜᴇ ᴍɪᴄʀᴏᴘʏʟᴇ, ғᴜɴɪᴄʟᴇ, ᴀɴᴅ ᴄʜᴀʟᴀᴢᴀ ᴀʟʟ ʟɪɴᴇ ᴜᴘ. ... ᴀɴᴀᴛʀᴏᴘᴏᴜs – ᴛʜɪs ᴛʏᴘᴇ ᴏғ ᴏᴠᴜʟᴇ ʙᴇᴄᴏᴍᴇs ɪɴᴠᴇʀᴛᴇᴅ ᴅᴜʀɪɴɢ ᴅᴇᴠᴇʟᴏᴘᴍᴇɴᴛ ᴀɴᴅ ᴛʜᴇ ᴍɪᴄʀᴏᴘʏʟᴇ ᴇɴᴅs ᴜᴘ ᴄʟᴏsᴇ ᴛᴏ ᴛʜᴇ ʜɪʟᴜᴍ.