hereto, nor to the importation by the United States Department of Agriculture 
of nursery stock and other plants and seeds for experimental or scientific 
purposes. 
Done in the District of Columbia this 18th day of November 1918. 
Witness my hand and the seal of the United States Department of 
Agriculture. 
[seal] D. F. Houston, 
Secretary of Agriculture. 
REVISED RULES AND REGULATIONS SUPPLEMENTAL TO NOTICE 
OF QUARANTINE NO. 37, GOVERNING THE IMPORTATION OF 
NURSERY STOCK AND OTHER PLANTS AND SEEDS INTO THE 
UNITED STATES 
[Effective on and after December 22, 1930, and superseding the regulations heretofore 
issued governing the importation of nursery stock] 
Regulation 1. Definitions 
For the purposes of these regulations the following words, names, and terms 
shall be construed, respectively, to mean : 
(a) Nursery stock and other plants and seeds: Field-grown florists' stock, 
trees, shrubs, vines, cuttings, grafts, scions, buds, fruit pits and other seeds of 
fruit and ornamental trees or shrubs; also field, vegetable, and flower seeds, 
bedding plants, and other herbaceous plants, bulbs, and roots, and other plants 
and plant products for, or capable of, propagation. 
(b) Field seeds: Seeds of cereal, forage, and other field crops. 
(c) Vegetable seeds: Seeds of garden vegetables and other truck crops. 
(d) Flower seeds: Seeds of annual, biennial, or even perennial flowering 
plants which are essentially herbaceous, namely, plants which perish annually 
down to, and sometimes including, the root (i. e., soft, succulent plants). 
(e) Seeds of hardy perennial plants: Seeds of woody or other plants which 
are not herbaceous and are either of a hardy and woody growth or are not 
killed to the ground in temperate zones. 
(f) Bulbs and conns: Bulb — an enlarged subterranean bud with fleshy scales 
or coats (for example, tulips, Spanish iris) : Corm — an enlarged fleshy base 
of a stem, bulb-like but solid (for example, gladiolus, cyclamen, crocus). 
(g) Plant roots, rhizomes, tubers: Plant roots — the more or less fibrous roots 
of any plant (for example, fruit seedlings, ornamentals, lily of the valley pips) ; 
rhizomes — a root stock or subterranean stem, usually fleshy and rooted at the 
nodes (for example, German iris, Aspidistra) ; tuber — a thickened, fleshy sub- 
terranean branch having numerous buds or eyes (for example, potatoes). 
(h) Nciv varieties: A new variety is understood to mean a novelty, i. e., a 
new plant, variety, strain, type, or form, either recognized by the trade as such 
or so listed or described in catalogs, trade journals, or other publications, or 
duly and properly certified as such by the originator or introducer. 
(i) Necessary propagating stock: Stock of old or standard varieties not avail- 
able in this country and imported for the multiplication of the plants in 
question as a nursery or florist enterprise as distinguished from importations for 
the immediate or ultimate sale of the stocks actually imported. 
(/) Limited quantities: As used in regulation 14 "limited quantities" is 
understood to mean such quantities as will supply any reasonable need for the 
establishment of commercial reproduction plantings or as may be necessary for 
the experimental, educational, or scientific purpose intended. 
Regulation 2. Plant products and seeds for which permit is not required 
Plant products capable of propagation, imported for medicinal, food, or manu- 
facturing purposes, and field, vegetable, and flower seeds, except such products 
and seeds as are governed by special quarantines and other restrictive orders 
now in force and such as may hereafter be made the subject of special quaran- 
tines or restrictive orders, 1 may be imported without permit or other compliance 
1 See appendix A to the Revised Ru'es and Regulations Supplemental to Notice of 
Quarantine No. 37 for list of such quarantines and restrictive orders. In addition to the 
quarantines and restrictive orders listed, a notice issued May 8. 1930, specifies that all 
species of Aglaonema may be imported ou and after June 1, 1930, only under the provi- 
sions of regulation 14. 
