Riccia

Both Riccia and Salix decreased dramatically by c.1900, coeval with marked increases in Artemisia (upper meadow) and Cyperaceae (upper and lower meadows).

Graybill and Funkhouser [1993] on Bristlecones « Climate Audit 2005

The formation of subterranean tubers, which persist when the rest of the plant is killed by drought, is an interesting adaptation to this end, and is found in all three groups (_e. g._ in species of _Riccia_, _Fossombronia_ and _Anthoceros_).

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Various

In _Riccia_ they are scattered singly and protected by the air-chamber layer.

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Various

Recent researches on those Algae such as _Coleochaete_ which appeared to afford a close comparison in their alternation of generations with _Riccia_, have shown that the body resulting from the segmentation of the fertilized ovum is not so strictly comparable in the two cases as had been supposed.

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Various

_Ricciocarpus_ and _Riccia natans_ occur floating on still water.

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Various

(_Riccia_) possess the simplest sporogonia known, consisting of a wall of one layer of cells enclosing the spores.

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Various

[109] Now Laricia, or Riccia, a town of the Campagna di Roma, on the

The Lives of the Twelve Caesars, Volume 02: Augustus Gaius Suetonius Tranquillus

Usually they stand in two rows, but sometimes accessory rows occur, and in _Riccia_ only a single median row is present.

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Various

In most species of _Riccia_ the air-chambers are only narrow passages, but in the other Marchantiales they are more extended.

Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria" Various

In _Riccia_ (fig. 4, A) the whole mass of cells derived from the ovum forms a spherical capsule, the only sterile tissue being the single layer of peripheral cells forming the wall.

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