TERMINOLOGY. 2S 
§ 16. 
The sTa.k (scapus), differs from thestem in this, 
that it issues straight from the root, and bears only 
flowers, as in the lily of the valley, Convallaria ma- 
falis ; Sagittaria sagittifolia, tc. fig. 44. Its varieties 
are denominated like those of the stem. Linneus 
has improperly, in some of the Filices, used the term 
scapus caulinus. 
Asal 
The rLower-stTaLk, (pedunculus ), is found close 
under the flower, and may be either a principal stem 
or stalk, as in fig. 23, 27, 38, 44. ‘The sorts are, 
1. One-flowered, (uniflorus), bearing only one 
flower, fig. 23, 27. | 
2. ‘Two or three-flowered, &c. (bi-triflorus), &c. 
3. Common, (communis), when several . flower- 
stalks unite in a common one. This flower-stalk 
is much branched, and the partial stalks are then 
called Pedicelli, pediculi. 
4. Radical (radicalis), when a sinele flower-stalk 
rises from the root, as in the violet, Viola odorata. 
5. Petiolar, (petiolaris), when the flower-stalk is 
Inserted in the leaf-stalk. 
6. Axillary, (axillaris), when it is fixed in the 
angle between the stem and the leaves. 
7. Lateral, (/ateralis), when the flower-stalk is 
found on the branches where there are no leaves, 
er on the shoots of the former year, as in Boehmeria 
ramiflora. 
8a, Op- 
