4 
PLANT INVENTORY NO. 168 
262682 to 262694—Continued 
262688. AGAVE sp. 
Col. No. 18327. Gypsiferous slopes and cliffs, 19 miles west of 
Colima. Elevation 1,000 feet. Plant multileaved, green; rosettes radial, 3 
by 4.5 feet; spikes to 16 feet high; flowers not crowded, pale lavender. 
262689. AGAVE sp. 
Col. No. 18328. Nineteen miles west of Colima. Plant small; rosettes 
open; weak rooted, sometimes surculose; leaves glaucous gray, zoned, crin- 
kled, downcurved. 
262690. AGAVE sp. 
Col. No. 18359. Volcanic cliffs 12 miles southeast of Esquinapa, 
Nayarit. Elevation 300 feet. Plant bright green; leaves white marked. 
262691. AGAVE sp. 
Col. No. 18878. ‘Noriba’. Pine-oak forest, Sierra Surotato, 
Sinaloa. Elevation 6,000 feet. Plant radial, green, filiferous; rosette 
large; spikes to 10 feet high. 
262692. MANFREDA sp. Amaryllidaceae. 
Col. No. 18273. Thirty-three miles north of Jalapa, Zacatecas. Eleva- 
tion 6,500 feet. Rosettes green; leaves arching, guttered. 
262693. MMANFREDA sp. ; 
Col. No. 18852. Oak woodlands 21 miles southeast of Tepic, 
Nayarit. Elevation 3,700 feet. Rosettes green, unspotted; leaves large, 
broad; spikes to seven feet high. 
262694. EQCHEVERIA sp. Crassulaceae. 
Col. No. 18391. Sierra Surotato, Sinaloa. Elevation 6,000 feet. Suc- 
culent; leaves bright bronze. ; 
262695 to 262705. 
From the Union of Soviet Socialist Republics. Plants presented to the Pres- 
ident of the United States by Premier Khrushchev. Numbered Jan. 4, 
1960. ; 
262695. ACER GINNALA Maxim. Aceraceae. Amur maple. 
262696. ACER PLATANOIDES L. Norway maple. 
262697. BETULA PENDULA Roth. Betulaceae. 
European white birch. 
262698. LARIX SIBIRICA Ledeb. Pinaceae. Siberian larch. 
262699. PHELLODENDRON AMURENSE Rupr. Rutaceae. Amur corktree. 
262700. PINUS CEMBRA var. SIBIRICA Loud. ex Bean Pinaceae. 
Siberian Swiss Stone pine. 
262701. PINUS SYLVESTRIS L. Pinaceae. Scotch pine. 
262702. PRUNUS MAACKII Rupr. Amygdalaceae. Amur cherry. 
262703. Sorgus (hybrid). Malaceae. 
(S. aucuparia xX Crataegus sanguinea). 
262704. SYRINGA AMURENSIS Rupr. Oleaceae. Manchurian lilac. 
262705. TILIA CORDATA Mill. Tiliaceae. European littleleaf linden. 
262766 to 262709. 
From Mexico. Plants collected by H. S. Gentry, plant explorer, Crops Re- 
pea Division, Plant Industry Station, Beltsville, Md. Numbered Jan. 
