W ATSON- -Plants of Bernalillo County 
ily, stamens in ours monadelphous, coherent with the 
petals. 
PoxryeaLa, Tourn. Milkwort. 
Flowers in recemes or spikes; 5 very unequal sepals, 
the two lateral ones enlarged like the wings of a pea; 
3 peteals unitd to each other and the stamen tube, the 
middle one hooded above and with a small (in ours) 
crest; 6 to 8 stamens with filaments united below into 
a split sheath, pods flattened at right angles to the nar- 
row partition. Ours belong to the section with leaves 
narrowly linear or subulate; flower white or greenish- 
white. 
P. Asa, Nutt. (White M.) Stems several from a 
hard root-stock; leaves acute, 1-4 to 1 inch long. “Four 
miles south of Tijeras.” July, 1898. 
36. SIMARUBACEAE. 
Much like Rutaceae but no dots on the leaves. 
AILANTHUS GLANDULOsUS, Desf. ‘Called Tree-of- 
Heaven (because of its tall growth), but whose blos- 
soms especially the staminate ones, are redolent of any- 
thing but ‘airs from Heaven.”” (The only joke in 
Gray’s Botany.) Commonly planted in town and 
spreads rapidly by means of shoots from the roots. 
There are many around the pumping station of the 
City Water Supply Co. The leaves are often over 2 
ft. long, and pinnately compound; dioecious fruit a 
samara. 
37. RUTACEAE, Rus Famrry. 
Trees, shrubs, or herbs; opposite or alternate leaves; 
generally regular and symetrical flowers, 4-5 sepals, in 
ours as many stamens inserted outside of an hypogy- 
nous disk. 
Prevea, LZ. Shrubby Trefoil. Hop-tree. 
Leaves 3-foliate, flowers greenish-white, small, po- 
lygamous, in compound terminal cymes; and broadly- 
winged, orbicular fruit. 
P. Trirouiata, L. var mous, 7. and G. Shrub or 
small tree; ovate leaves downy below as are also the 
branchlets and petioles. Common in the Spruce-Acer- 
Robinia Association and the Quercus undulata james 
societies of the mountains. 
38. LINEAE. Fax Famiry. 
Linum, Tourn. Flax. Herbs with tough fibrous 
bark, alternate sometimes opposite), sessile le aves 
without stipules or with glands in their place; persis- 
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