Category: Science - Biology

Grasses

That grasses are interesting and important plants is a fact recognised by botanists all the world over, yet it would appear that people in general can hardly have appreciated either their interest or their importance seeing how few popular works have been published concerning...

Chapters

11. CHAPTER IX.

Palea 2·3 mm. long, five-ribbed, with a short point, delicate but hard, smooth, with a silvery lustre. Inner pale two-nerved. Closely investing the yellow-brown caryopsis, which...

5. CHAPTER III.

Section of sheathed leaves broadly naviculate; sheath smooth, no keel; leaf not ribbed, thick and inflated with large air-cavities; ligule short. Leaf-base with a brown triangle...

4. CHAPTER II.

The sheath is usually obviously _split_, and so rolled round the internode that one edge overlaps the other, but in the following grasses the sheath is either quite _entire_, or...

9. CHAPTER VII.

The four glumes and two stamens distinguish this grass at once. Other grasses with occasionally tuft-like inflorescences--e.g. species of _Agrostis_, _Gastridium_, _Aira_, _Dact...

10. CHAPTER VIII.

The stigma of an ordinary grass consists of two divaricating plume-like structures composed of thin-walled cells. When the paleæ open these stigmatic plumes protrude, one on eit...

8. CHAPTER VI.

When the flowering shoot of a grass pushes up into the light and air from the enveloping leaves, it forms a more or less branched collection of flowers known as the _Inflorescen...

3. CHAPTER I.

That grasses are interesting and important plants is a fact recognised by botanists all the world over, yet it would appear that people in general can hardly have appreciated ei...

7. CHAPTER V.

I. THE CHLOROPHYLL-TISSUE, ON TRANSVERSE SECTIONS, IS ARRANGED IN RINGS ROUND THE VASCULAR BUNDLES. THERE ARE MOTOR-CELLS BETWEEN THE RIBS, AND THE STOMATA ARE SUNK AND OCCUR ON...

6. CHAPTER IV.

The principal anatomical features observed in the leaves of grasses--apart from finer histological details into which it is not my purpose to enter--concern the characters of th...

2. CHAPTER IX.

1. CHAPTER V.