SO 8 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM,
S. SALSOLA L
10. DIPIJDTAXIS DC
1. Diplotaxis erucoides (L.) DC. Altrag railroad at east entrance, Native of Eur.—
Annual, 30 to 60 cm. high, branched; leaves deeply lobed, the lobes oblong, toothed or lobed; petals pale yellow, G to mm. long; pods short-beaked.
This species is of rare occurrence in the United States, and it is not reported in any of the manuals. It seems to be fairly well established at this locality.
11. SOPHIA Adans. Tansy mustard.
Annuals or biennials, the pubescence of fine branched hairs; leaves 2 or 3 times lobed, with small lobes; petals small, yellow; pods slender, cylindric or club-shaped.
Pedicels erect 1. S, hartwegiana.
Pedicels ascending or spreading.
Pods somewhat club-shaped, 5 to 30 mm. long; seeds in 2 rows . 2. S. intermedia.
Pods linear, usually 10 to 20 mm. long; seeds in 1 row.
Pods 15 to 20 mm. long 3. S. parviflora.
Pods 10 to 15 mm. long.
Stems densely covered with fine branched hairs, not glandular . 4. S. gracilis.
Stems with few or no branched hairs but with fine gland-tipped hairs.
5. S. californlca.
1. Sophia hartwegiana (Fourn.) Greene. Occasional on the east slope at low alti- tudes, in aspen woods or by roadsides. B. C. to Colo, and Minn.—Stems 0.4 to 1 meter high, covered with fine branched hairs; petals 2 to 3 mm. long; pods 6 to 12 mm. long, linear or club-shaped.
2. Sophia intermedia Rydb. Open banks, east entrance. B, C. to Calif., Colo., Tenn., and Mich.—Plants green, glabrate; petals scarcely longer than the sepals.
3. Sophia parviflora (Lam.) Standl. Thin woods about Bel ton; scarce. Native of Eur.; naturalized in N. Amer. (S. sophia Britton; Sisymbrium sophia L.; Sisym- brium parvijloruni Lam.)—Plants 30 to 80 cm. high, grayish; petals yellowish; pods 1 mm. thick.
4. Sophia gracilis Rydb. East entrance, frequent on open slopes. -Wash, to Mack, and Colo.—Leaves grayish, divided into very small, narrow lobes; petals 2 mm. long;
pods 1 mm. thick.
6. Sophia califoinica (Torr. & Gray) Rydb. Frequent at middle altitudes and often above timber line, in woods or on open slopes. B. C. to Calif, and Mont.—Plants slender, 30 to 60 cm. high, green; petals bright yellow, 3 mm. long.
348 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM.
12. CONBXNGIA Link.
1. Conrlngia orlentalls (L.) Dum. Hare's-ear mustard. Occasional at low alti- itudes, chiefly n waste ground. Native of Eur,; occasionally naturalized as a weed in N. Amer.—Glabrous annual, 30 to 60 cm. high; leaves mostly oval, 4 to 10 cm. long, entire, clasping, very pale; petals white, 8 mm. long; pod 4-angled, 8 to 10 cm. long, about 2 mm. thick.
13, CHEUttNIA Link. Wild wallflower.
Annuals or biennials, with leafy stems; pubescence of small, appressed, gray, 2 or 3-branched hairs; petals yellow; pods linear, somewhat 4-angled.
Petals 4 to 5 mm. long; pods 2 to 3 cm. long; plants green . . 1. C. cheirantfcoides.
Petals 8 to 10 mm. long; pods mostly 3.5 to & cm. long; plants grayish.
2. C, inconsplcua.
1. Cheirinia cheiranthoides (L.) Link. Occasional on the east slope at low alti- tudes, in meadows or on open hillsides. Alaska to Utah, N. €., and Newf.
(Erynmum cheiranihoida L.)—Plants branched, 30 to 60 cm. high; leaves linear or lanceolate, 2 to 6 cm. long, entire or shallowly toothed; petals bright yellow.
8. Cheirinia inconsplcua (S. Wats.) Rydb. Frequent on the east slope at low altitudes, in meadows or on open hillsides. B. C. to Colo, and Minn.—Stems 30 to 60 cm. high, often branched; leaves mostly linear, entire or shallowly toothed; petals pale yellow.
14. CAMPE Dulac.
1. Campe orthoceras (Ledeb.) Heller. Wintercress. Occasional at low and middle altitudes, in moist woods or thickets. B. C. to Colo, and Mont.; also in Eur., and natu- ralized in eastern N. Amer. (C. americana Cockerell; Barbarea americana Rydb.)—
Plants biennial, 30 to 50 cm. high, stout, glabrous; leaves pinnately lobed, with broad rounded lobes; petals yellow, 2 to 4 mm. long; pods 2 to 3 cm. long, 2 mm. thick,
somewhat 4-angled.
15. BBASS1CA L. Mustard.
Annuals with leafy stems; leaves, at least the lower ones, lobed; petals yellow;
pods long, cylindric, beaked.
Stems hairy, at least below; beak of the pod usually 10 to 15 mm. long, containing a seed in the lower part 1. B. arvensls, Stems usually glabrous; beak 4 to 7 mm. long, seedless 8. B. juncea,
1. Brasslca arvensls (L.) Kuntze. Charlock. Occasional at Belton and east entrance, in waste ground. Native of Eur.; naturalized in N. Amer. (Sinapu atverms L.).—Stems stout, branched, 30 to 70 cm. high; upper leaves ovate or lanceo- late, toothed; petals about 8 mm. long; pods 3 to 4 cm. long.
9. Brasslca Juncea (I».) Cose. Indian mustard. Occasional on the east slope at low altitudes, in waste ground. Native of Asia; naturalized in N. Amer.—Plants 0.8 to 1 meter high, branched, often glaucous; leaves mostly lobed; petals 8 to 10 mm.
long; pods 3 to 5 cm. long.
16. CARDAMINE L. Bittercress.
Perennials, glabrous or nearly so; leaves pinnate; petals white; pods long, narrow, flattened.
Petals usually 6 to 6 mm. long; leaflets usually 3 to 7, some of them rounded.
1. C. breweri.
Petals 2 to 3 mm. long; leaflets 5 to 15, most of them oblong or oblanceolate.
8. C. pennsylvanlca.
1. Cardamlne brewerl S. Wats. Frequent at low and middle altitudes, in wet woods or thickets, or marshes, or along streams. B. C. to Calif Wvo.. and Mont.—
STANDLEY—FLORA OF GLACIER PARK. 349
Sterna 20 to 50 cm. high, succulent; leaflets mostly 1 to 4 cm. wide; pods 2 to 3.5 cm.
long, 1.5 mm. wide.
0. Cardamine pennsylvanica Muhl. Frequent at low altitudes, in wet woods or thickets or along streams or lakes. B. C. to Oreg., Colo., Fla., and Newf.—Sterne 15 to 40 cm. high, branched; leaflets mostly less than 1 cm. wide, often lobed or toothed;
pods 2 to 3 cm. long, 1 mm. wide.
17. DBABA L. Whitlowgrass.
Annuals or perennials, the pubescence, if any, mostly of branched hairs; leave?
entire or toothed, often all basal; petals white or yellow; pods short, linear or oblong, flat.
Plants annuals or winter annuals; style none.
Pods finely hairy.
Pedicels equaling or longer than the pods; stems leafy ... 1. D. nemorosa.
Pedicels shorter than the pods; stems naked or with few small leaves.
2. D. praealta.
Pods glabrous.
Stems leafy; pods usually 8 to 15 mm. long . .* 8. D. nitida.
Stems naked; pods mostly 6 to 8 mm. long 4. D. crassifolia.
Plants perennial; style present except in one species.
Stems leafy; plants usually 15 to 40 cm. high.
Petals white 5. D, cana.
Petals yellow 6. aurea.
Stems naked; stems usually less than 10 cm. high.
Pods densely hairy.
Pods nearly or fully twice as long as wide 7. D. densifolia.
Pods nearly as wide as long 8. P. andina.
Pods glabrous or with a few hairs near the margins.
Pods nearly as wide as long 9. D. oligospenna.
Pods twice as long as wide or longer.
Style none 10. D. fladnizensls.
Style present.
Petals yellow 11. D. glaclalis.
Petals white.
Pods twisted; leaves with fine branched hairs ... 18. D. lonchocarpa.
Pods not twisted; leaves with unbranched hairs on the margins.
13. D. oreibata.
1. Draba nemorosa L. Moist woods below Lake McDermott. B. 0. to Oreg., Nev., Colo., and Mich.; also in Eur. and Asia.—Stems slender, 10 to 30 cm. high; leaves ovate or oblong, usually toothed; petals pale yellow, 2 to 3 mm. long; pods 7 to 15 mm.
long, 2 mm. wide.
2. Draba praealta Greene. Rocky slopes near or above timber line. B. C. and Alta. to Wyo.—Stems slender, 10 to 20 cm. high; basal leaves lanceolate or oblanceo- late, with fine branched hairs, 1 to 3 cm. long; petals white, 2 to 3 mm. long; pods 1 cm.
long, 2 to 3 mm. wide.
3. Draba nitida Greene. Frequent on the east slope at middle altitudes, in moist woods or on open banks. Alta. and B. C. to Calif, and Colo.—Stems slender, 10 to 30 cm. high; basal leaves oblanceolate, 1 to 3 cm. long, hairy beneath; petals yellow, 2
mm. long; pods 2 mm. wide.
4. Draba crassifolia Graham. Frequent above timber line, in meadows or on rocky slopes. Alaska to Colo., Lab., and Greenl.—Stems slender, 2 to 12 cm. high;
basal leaves oblanceolate, 5 to 15 mm. long; petals 2 mm. long, pale yellow or nearly white; pods 2 mm. wide.
350 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM
5. Draba cana Rydb. Frequent on the east slope at low and middle altitudes and sometimes above timber line, in woods or on open hillsides. B.C. and Alta. to N. Mex.—Stems stout, branched, at least at the base, finely hairy; leaves mostly lanceolate or ovate; petals 3 mm. long; pods 6 to 8 mm. long, finely hairy, usually
twisted.
6. Draba aurea Vahl. Frequent on the east slope at middle altitudes and some- times above timber line, in woods or on open hillsides. Alaska to Ariz., Lab., and Greenl.; also in Eur.—Stems stout, finely hairy; basal leaves oblatnceolate, 1 to 2 cm. long; petals 3 to 5 mm. long; pods 10 to 12 mm. long, 2 to 3 mm. wide, finely hairy, usually twisted.
* 7. Draba densifolia Nutt. Occasional above timber line, chiefly on rock slides.
Alaska to Wyo.—Plants densely tufted; leaves oblanceolate, 5 to 10 mm. long, hairy, crowded and overlapping; stems 1 to 5 cm. high; petals yellow, 4 to 5 mm. long;
pods 5 to 8 mm. long, 3 to 4 mm. wide.
8. Draba andina (Nutt.) A. Nels. Occasional above timber line, on rock slides or exposed summits, sometimes about snow banks at middle altitudes. B. C, and Alta.
to Wyo. and Utah.—Plants very densely tufted; leaves 5 mm. long, hairy, densely crowded and overlapping; stems 1 to 3 cm. high; petals yellow, 4 to 5 mm. long;
pods 3 to 4 mm. long, 2.6 to 3 mm. wide.
9. Draba oligosperma Hook. Hills at east entrance, Umback. Alaska to Calif, and Utah.—Plants densely tufted; leaves linear, 5 to 10 mm. long, crowded ; stems 2 to 8 cm. high; petals pale yellow, 4 to 5 mm. long; pods about 4 mm. long and 3 mm. wide.
10. Draba fladnizensis Wulf. Open rocky slope at Gunsight Pass. Alaska to Colo., Que., and Greenl.; also in Eur.—Stems slender, 5 to 12 cm. high; leaves oblanceolate, 1 cm. long or shorter, nearly glabrous; petals white, 3 mm. long; pods 4 to 6 mm. long, 2 mm. wide.
11. Draba glacialis Adams. Occasional above timber line, on .cliffs or open rocky slopes. Alaska to Wyo. and Greenl.—Stems 5 to Id cm. high, densely tufted; leaves mostly linear, 1 to 3 cm, long, finely hairy; petals yellow, 5 mm. long; pods 6 to 10 mm. long, 2 to 3 mm. wide.
12. Draba lonchooacpa Rydb. Occasional above timber line, on moraines and rock slides. B. C., Wash., Mont., and Alta.—Plants slender, tufted, 5 to 10 cm. high;
leaves spatulate, 3 to 10 mm. long; petals white, 2 mm. long; pods 8 to 12 mm. long, 1.5 mm. wide.
13. Draba orelbata Macbr. & Pay son. Occasional on open rocky slopes about timber li ne, or in exposed places at lower altitudes. Idaho, Utah, and Mont.—Plants tufted, 3 to 10 cm. high; leaves narrowly oblong, 4 to 10 mm. long; petals white, 2 to 3 mm. long; pods 7 to 10 mm. long, 2 to 3 mm. wide.
18. ARABIS L. Rockcress.
Perennials or biennials, glabrous or hairy, the hairs usually branched; leaves entire or toothed, rarely lobed; petals white, pink, or purple; pods long, linear, flat.
Basal leaves deeply lobed 1. A. ambigua.
Basal leaves entire or toothed.
Pods spreading or reflexed.
Pedicels abruptly reflexed.
Pods nearly 2 mm. wide; petals C to 8 mm. long; stem leaves .oblong or lan- ceolate 2. A. retrofracta.
Pods le33 than 1.5 mm. wide; petals 5 to 6 mm. long; stem leaves linear.
3. A. lignipes.
STANDLEY—FLORA OF GLACIER PABK. 351
Pedicels spreading or ascending.
Pods 3 to 4 cm. long; plants usually 10 to 20 cm. high .... 4. A. lemmonii.
Pods 4 to 8 cm. long; plants usually 30 to 50 cm. high 6. A. bourgovii.
Pods erect or strongly ascending.
Basal leaves glabrous or nearly so.
Stems 30 to 60 cm. high; pods 5 to 8 cm. long 6. A. drummondii.
Stems usually 10 to 20 cm. high; pods 4 to 5 cm. long 7. A. lyallii.
Basal leaves covered with coarse hairs.
Stem leaves narrowed at the base; plants 10 to 20 cm. high . . 8, A. nuttallii.
Stem leaves clasping; plants mostly 30 to 60 cm. high.
Pods about 1 mm. wide, flat; leaves green, the stem leaves usually toothed.
9. A. hirsuta.
Pods 2 mm. wide, somewhat 4-angled; leaves somewhat glaucous, the stem leaves usually entire 10. A. glabra.
1. Arabis ambigua DC. Rock slide above Many Glacier Hotel. Alaska to Wash, and Mont.—Stems tufted, 15 to 30 cm. high, slender, glabrous or nearly so; stem leaves spatulate or oblanceolate, entire or toothed; petals white, 6 mm. long; pods erect, 2 to 3 cm. long.
2. Arabis retrofracta Graham. Thin woods at base of Altyn Peak. B. C. to Calif,, Utah, and Nebr.—Stems 20 to 40 cm. high, with branched hairs; stem leaves clasping, entire, glabrous; petals white or pinkish.
3. Arabis lignipes A. Nels. Dry rocky slopes, Altyn Peak. Idaho, Mont., and A7yo.—Stems 30 to 50 cm. high, finely hairy below; stem leaves finely hairy, clasping;
petals white or purplish.
4. Arabis lemmonii S. Wats. Gray rockcress. Common above timber line, in meadows or on rock slides; sometimes about snow banks at middle elevations; also on exposed slopes at east entrance. B. C. to Calif, and Mont.—Stems slender, usually several; stem leaves lanceolate or oblong, clasping, the basal leaves covered with fine
branched gray hairs; petals purple, 5 to 6 mm. long.
5. Arabis bourgovii Rvdb. Frequent on the east slope at low and middle altitudes and sometimes near timber line, in meadows or low thickets or on open rocky hillsides.
Alaska to Man., Wyo., and Idaho.—Stems slender, often numerous; basal leavesoblan ceolate, finely hairy; stem leaves lanceolate, clasping; petals pink, 6 to 8 mm. long;
pods 2 mm. wide. ,
6. Arabis drummondii A. Gray. Frequent at nearly all altitudes, but most com- mon above timber line, in woods or meadows or on rock slides or open slopes. Yukon to Utah and N. Mex.—Stems several or solitary; stem leaves lanceolate, clasping, glabrous, glaucous, entire; petals 6 to 10 mm. long, varying from white to purple;
pods 1.5 to 2 mm. wide.
7. Arabis lyallii S. Wats. Purple rockcress. Common above timber line, in meadows and on rock slides. B. C. to Calif, and Mont.—Stems usually clustered, glabrous; stem leaves lanceolate, usually clasping, green, entire, glabrous; petals purple, 7 to 8 mm. long; pods 2 mm. wide.
A showy and handsome plant, which remains in flower only a short time.
8. Arabis nuttallii Robinson. Frequent at nearly all altitudes, but most common above timber line, in meadows or woods or on open slopes or rock slides. Wash, to Utah and Mont.—Stems clustered, slender, hairy below; petals white, 4 to 6 mm, long;
pods 1 to 3 cm. long.
9. Arabis hirsuta (L.) Scop. Frequent on the east slope at low or middle altitudes, in woods, thickets, or meadows or on open hillsides. Alaska to Calif., Ga., and N. B.;
also in Eur. (A. ovata Poir.)—Stems solitary or few, stout, often purplish, hairy;
*
352 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM
stem leaves lanceolate or oblong, clasping, 2 to 6 cm. long; petals white, 4 to 5 mm.
long; pods 4 to 6 cm. long, erect.
10. Arabia glabra (L.) Bemh. East entrance and Belton, in thickets or on open elopes. Alaska to Calif., Pa., and Que.; also in Eur. (Tunitis glabra L.)—Stems stout, hairy below; stem leaves lanceolate or ovate, 2 to 12 cm. long, glabrous, clasping;
petals white, 3 mm. long; pods erect, 4 to 10 cm. long,
36. CAPPARIDACEAE. Caper Family.
l. cleome L.
1. Cleome serrolata Pursh. Rocky Mountain beeflant. Along the railroad near the east entrance; apparently introduced; abundant farther east on the plains.
Oreg. to Bask., N. Mex., and Ariz. (P&ritoma serrulatum DC.)—Glabrous annual, 0.5 to 1 meter high; leaves palmate, stalked; leaflets 3, entire, oblanceolate; flowers pur- ple; petals 4, about 1 cm. long; fruit a long slender stalked pod.
The plant has a disagreeable odor; its flowers are showy.
37. DROSERACEAE. Sundew Family.