Bulletin University of New Mexico—No. 49 
Orules numerous in each cell. Leaves opposite, 
- - - . - 1. HOUSTONIA. 
Ovules solitary, leaves in whorls without stipules, 
- - - - - - 2. GALIUM. 
1. Houston1a. L. BLUETS. 
Low herbs, dimorphous flowers, funnel form, 4 
lobed corolla, 4 stamens. 
H. numirusa, Gray. Annual, much branched from 
the root, forming a dense low tuft, pubescent and 
viscid, leaves linear-laceolate, thickish 1-2 inch or 
more long with setulose-ciliate scarious stipules; flow- 
ers in all the forks, (crowded) with the leaves at the 
ends of the branchlets; calyx 4 parted into long lobes; 
corolla pale purple or nearly white, 1 inch long. Quite 
common on the mesa in the spring and early summer. 
2. GALIuM. JL. BEDSTRAW, CLEAVERS. 
Slender herbs with square stems, small flowers and 
obsolete calyx-teeth, 4-parted rotate corolla, 4 (rarely 
3) short stamens, 2 styles, dry globular twin fruit sep- 
arating when ripe into two seed-like indehiscent 1-seed- 
ed carpels. Ours are wholly herbaceous, margin and 
midrib of leaves and angles of the stem rough. They 
occur only in the Sandia Mts. in mesephytic societies. 
Frut beset with hooked bristles; leaves 6 im 
a whorl, - - - - G. TRIFLORUM. 
Fruit without bristles; leaves 4 in a whorl, 
- - - - -G. BOREALE. 
G. TRIFLoruUM, Mitcz. CBR ratanal B.) 
Diffusely procumbent, smoothish; herbage sweet- 
scented in drying, stems 1 to 3 feet long; leaves lanceo- 
late or narrowly oblong (1 to 2 in. log) ; cymes once or 
twice 3-rayed; pedicels soon divaricate; corolla yel- 
lowish-white to greenish. 
G. BoREALE, LZ. (Northern B.) Erect, 1 to 2 ft. high, 
mostly smooth and glabrous, very leafy, leaves linear 
to broadly lanceolate, 3-nerved blunt, often in the fas- 
cicles of smaller ones in the axiles; flowers very num- 
erous in a terminal panicle, fruit small hispid or at first 
canescent and soon glabrous and smooth. 
7. PLANTAGINEAEF. (pianrarn. FAMILY.) 
Chiefly stemless herbs, with regular 4-merous spiked 
flowers, stamens inserted on the tube of the dry and 
membranaceous veinless corolla and alternate with iis 
lobes. 
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