904 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Im Cuba and other regions furnishing high-grade tobacco the crop is not only 
assorted by localities, but the leaves even from different parts of the same plant 
are separated into several classes, some of superlative quality. In Porto Rico the 
manufacturers uniformly declare that they handle only one grade of tobacco, and 
that the differences in the prices of their various classes of cigars represent merely 
the varying cost of labor and packing. 
Nigua. See Tournefortia hirsutissima. 
Several other species of Tournefortia are also known under this name, though 
Stahl proposes distinctive terms for the different species. A root called * nigna”’ 
Was on sale in the market of Ponce as an ingredient of a refreshing drink. 
Nigua de playa. See Towrnefortia guaphalodes, 
Nigua-enredadera. See Tournefortia volubilis, 
Nigua fetida. See Tournefortia foetidissima, 
Nigua-hoja-laurel. See Tonrnefortia laurifolia, 
Nigua peluda. See Tournefortia hirsutissima, 
Niguita. See Touruefortia laevigata. 
Nino de cota. See Haemocharis portoricensis. 
Nispero. See Achras sapota. 
This is the Spanish name for the Japanese medlar or loquat (Kriobotrya japonica) , 
but in Porto Rico it is universally applied to Aehras sapota, elsewhere called 
“sapote * or “ sapodilla.”” Captain Hansard gives a specific gravity of 1.02 for 
the * sapadilla”’ or ** nispero? wood. 
Nispero cimarron. See Symplocos lanata, 
Nispero de Espana. See Hriobotrya japonica. 
Nispero was originally the Spanish for Mespilus germanica, but was transferred 
to the loquat when that was introduced. In Porto Rico the use of ‘ nispero’’ for 
the sapodilla has resulted in the explanatory ‘‘de Espafia’’ for the Japanese 
species. 
No-eye pea. See Cajanus cajan, 
Nopalea coccinellifera. Tuna Mansa. PLATE XLVII. 
This is generally reported to be a spineless cactus on which the cochineal insect 
is raised. In the Canary Islands. however, where there is a considerable cochineal 
industry, the cacti employed are by no means spineless, and are apparently the 
plant usually designated by botanists as Opratia fieus-indica. Nopalea is reported 
from Porto Rico by Stahl (4: 190) as Opratia coccinellifera, 
Norfolk Island Pine. See Aranuearia excelsa, 
Noyo. See /pomoeu dissectu, 
Nues. (Probably a misspelling of ** Nuez.”*) 
A tree from the interior of the island; height, 35 to 40 feet (11 to 12 meters); 
diameter, 20 to 25 inches (50 to 63 centimeters). Wood, red, hard: specific gravity, 
0.654; used for making furniture. (Exp. 1857.) 
Nuez. See Juglaus cinerea. 
The Spanish name for the fruit of the common walnut. 
Nunguey. 
On sale at the market of Ponce; said to be the root of a tree; used with sugar 
and water in the preparation of a refreshing drink. 
Nutmeg. 
Many attempts have been made to render the cultivation of the nutmeg a com- 
mercial industry in various parts of South America and the West Indies, but with 
uniformly discouraging results, excepting in the volcanic island of Grenada, at the 
extreme southern end of the Windward chain. Grenada lies ont of the track of 
