Some new plants from the Pacific Northwest

Vol. 33, pp.103-106

December

_30,1920

PROCEEDINGS

OFTHE

BIOLOGICAL SOCIETY OF WASHINGTON

SOME NEW PLANTS FROM THE ^PACIFIC NORTH- WEST.

BY

^C. V.

PIPER.

In various

collections of plants sent to

the

writer recently

from _Oregon, Washington and

British

Columbia,

^there

were found

several species

not

heretofore described.

Some

of these

seem

to

be _very

local as

they have ^not been found by ^other

collectors.

Most

of

them

^are

from rather high Alpine

localities.

The _{type specimens}

are in

the

possession of

the

writer, unless

otherwise

indicated.

Erysimum

torulosum,n. sp.

Biennial, with a stout taproot; stems erect, usually simple, solitary, 15-45 cm. _high;herbagegreen, sparsely strigillosethroughout with short forked hairs; basal leavesspatulate, acute, coarsely dentate tosubentire, 3-8 cm.long;caulinesimilarbutreduced,mostlyentire; sepalslanceolate acutish,green at^first,7

mm.

long; petals yellow, 1.5cm._{long; peduncles} infruit,1cm._long;podsascending^orspreading, 4-angled,torulose,strigil- lose,conspicuously beaked, 6-8 cm.long; seedsnot margined.

Mount

Rainier,Wash., on Owyhigh, ^alt. 5500ft. J. B. Flett,Aug. 11, 1919; Nos. 3158 (type), 3160; Mt. Rainier, Piper 2062; Allen 266;

Mt.

St. Helens, Coville 111.

This plant

must

be_segregatedfromE. asperum (Nutt.)

DC.

on account of its green herbage

and

_very different torulose pods. Perhaps ^{all the} specimens fromhighaltitudes in theCascade

and Olympic

^{Mts. are to}

be

referred here, butuntil the present mature pods

seem

not tohave

been

collected.

Arabis macella,^n. sp.

Biennial from a stout taproot; stems

many,

simple, slender, flexuous, terete, sparselypilosebelowwith simple hairs, otherwise glabrous, 40-50 cm.tall; basal leaves spatulate-oblong, obtuse, 3cm._long,the blade longer thanthemarginedpetiole, glabrousonthe faces,themargins ^ciliatewith

23—

Proc. Biol. Soc.Wash.,Vol.33, 1920. (103)

104 Proceedings

of ^the Biological Society of

Washington.

simple ^hairs; cauline leaves _few, oblong ^tolinear, obtuse_{to acute,} broad but notauriculate_{at base,}ciliate,thelower 2cm._long,reduced upwards;

recemes in fruit 5-15 cm. long; pedicels erect in anthesis, spreading in fruit, 1-1.5cm._{long, glabrous;sepals}oblong, obtuse, margined, glabrous, the

two

outer gibbous at base, 2-2.5

mm.

long; petals oblong-spatulate, obtuse, white, 4

mm.

long; pods erect, glabrous,

somewhat

compressed, the valves mostly 3-nerved, the midrib _stoutest, 1.5-2cm. _long, 1

mm.

wide, tippedwitha_{style 1.5}

mm.

long;seedsinone_row,oval,compressed, wingless, dark brown, ^0.5

mm.

long;cotyledonsaccumbent.

Ritzville,Wash., Sandberg

and

_LeibergNo.202,June11,1893,typeⁱⁿthe U.S. National

Herbarium

sheetNo. 289784.

An

ally of

A

^._furcataWats.

Castillejabrevilobata,n. sp.

Perennialwithadeeptaproot

and

branchedmulticipitalcaudex;stems clustered, erect or ascending, 10-15 cm. _high, puberulent ^{or in thein-} florescence pilose; leaves sessile, oblong, obtuse, 3-nerved, hispidulous

and somewhat

viscid especially on the margins, 1-2 cm. long, entire or mostly^with3 short obtuselobes;bractssimilartothe leavesbut broader

and more

deeplylobed, thetips scarlet; flowerssubsessile;racemes rather loose,narrow,5-10 cm._long; calyx 10

mm.

or in fruit12-13

mm.

_long,sub- equally^cleftbeforeandbehind,justequalling the^corollalip,thelobeseach with2 short obtuseteeth; corolla 15-18

mm.

long, the galea 8

mm.

long, slender, glandular puberulent on the back especially at tip, the broad margin scarlet; lip green, fleshy, 2

mm.

long, the acute teeth incurved;

stigma bilobed, small; capsule ovoid, very acute, dark brown, glabrous, 6-8

mm.

long.

In reddishsoil on mountainslopes, 8 milessouth of Waldo,Josephine County,Oregon,June14, 1904, ^C. V.Piper No. 6118(sheet527,720,U. S.

National

Herbarium

type)

and

No. 6230;

same

_locality,

Thomas

Howell, June^{8, 1884.}

Allied toC. angustifolia(Nutt.) Don, butdiffering in^{all its}partsbeing smaller,the short-lobedleaves,

and

the

somewhat

viscidhispidulouspubes- cence.

Castilleja chlorotica, n. sp.

Perennial with a stoutvertical taproot, several to

many

^stemsarisingfrom thecrown; stems^{erect or}nearlyso,mostlysimple, 15-20cm. high, viscid puberulent; leaves ^sessile, oblong-lanceolate, obtuse, about 2 cm. _long, minutely and very sparsely puberulent, mostly simple but

some

of the upper^ones3-cleft;flowers subsessile;racemes3-4 cm. _{long, at}firstdense, becoming^looserbelow; bracts all 3-cleft, themiddle lobe broadest, acute or obtuse,as long ^as the flowers; calyx yellowish green, 15

mm.

long, minutely puberulent on the tube, hispidulous on the lobes, subequally cleft before and behind into lobes shorter than the tube, each lobe cleft into

two

broadtriangular acute teethwhich extendwellbeyond^thecorolla

lip;corolla2cm._long;galea8

mm.

long,hispidulouson the back, greenish except the narrow_purple margin;lip 2

mm.

long, green, fleshy,the lobes

Piper — _New Plants from

^the Pacific Northwest.

105

involute, acute; stigma small, globose;

immature

_{pods ovoid, acute,} glabrous.

Grayhart ^Buttes, County, Oregon, ^alt. 2250 meters, August ^8, 1896, Coville

and

LeibergNo. 283.

Relatedto C. angustifolia (Nutt.) Don, butdistinguished

by

^{its viscid} puberulence, mostly entire leaves,

and

peculiarly colored bracts

and

co- rolla.

Aster misellus,^n.sp.

Perennial from a _loosely

muchbranched

base; stems _{simple or loosely} branchedabove,terete,sparselywhitepuberulent,purple, 10-20cm._high;

leaves pale, entire or few- toothed; basal leaves spatulate-oblong, obtuse, glabrous except the ^ciliolate margins, the blades equalling the petioles;

cauline narrowly oblanceolate, obtuse to acute, half-clasping at _base, 2-8 cm. _long, ciliolateat the base

and

slightlyso

on

the margins; upper ones reduced; heads _few, mostly solitary terminating the branches, each about 1 cm. _broad, hemispheric; tegules in

two

indistinct series, acute to obtusish,themidribs

and

tips green,broadlyscarious-margined,ciliolate, glabrous on the back, shorter than the disk; rays about 20,pale violet 6-8

mm.

long;pappuswhitish;akenessparselyhirsutulous.

Moist beach of Strawberry Lake, Strawberry Mts., Grant County, Oregon,

W.

C. Cusick, Nos. 3636 _(type), 3623, 3625, September ^{9, 1910.}

Closely ^{allied to}A. occidentalisNutt.

Achillea_{eradiata,n. sp.}

Perennial with a creeping rootstock; stems about 30 cm. high, corym- bosely branchedabove, sulcate, sparsely villous; leaves _green, sparsely villous, the lower ones 5 cm. _{long, petioled} froma broad scarious base, the upper ^ones 2-3 cm. _long, sessile

and

butslightly broadenedat base;

lower leaves with 10-15 pairs of divisions, separated

by

^{about half their}

length,

most

of thedivisions deeply5-10 _cleft; upper ^leavesless deeply divided, therachismargined, ^thedivisionsmerelylobed or_cleft;inflores- cence loose,

composed

^{of about 5} corymbiform branches 4-5 cm. long;

heads cylindric-turbinate, 5-7

mm.

long, 3-4

mm.

_broad; tegules about 20, elliptic-ovate, sparsely villous, all obtuse, greenish along the midrib, thescariousmargins brown;^{flowers 3}

mm.

_long,cream-colored,^alltubular, the outer ones slightly larger, an occasional one _developing into an im- perfectligule;akenes immature.

Dry

^{borderofwoods, eastend of Pamelia}Lake, ^{foot of}

Mt.

_Jefferson, Oregon,4000ft. alt., Aug. 13, 1919, J. C. NelsonNo. 2791,oneplantonly growing^{with the}

common

Achillealanulosa Nutt., from whichit isstrik- ingly divergent. Very ^different from

any

^other

North

American _species in itsvery looselydivided leaves, large involucres,

and

raylessheads.

Arnica aphanactis,n. sp.

Rootstocks slender, creeping; herbage wholly glabrous except the mi- nutelypuberulent peduncles; stems 30 cm.high,

somewhat

shiny; basal leaves not _seen;cauline 2 pairs, ellipticor slightly ovate, palerbeneath.

106 Proceedings

^{of the} Biological Society of

Washington.

obtuse, coarsely irregularly serrate, 2-5 cm. _long, the lower pair short petioled,theupperpair^sessile

and

larger;headsthree,long-peduncledfrom a lanceolate acute dentatesessilegreen bract^; heads campanulate,rayless, 1.5 cm._high, 1cm._broad; tegules8,linear-lanceolate, acuminate, shorter thantheflowers,glabrous; disk flowersabout 25,each 1cm._long;pappus bright white, barbellulate^;akenescylindric,glabrous.

Mount

Baker, Washington, ^G.

W.

Turesson in 1915. Closely ^alliedto

A

^._latifoliaBong,

and A

^.betonicaefoliaGreene butrayless.

Arnica andersonii,^n. sp.

Stems erect, 30-50 cm. high, verysparsely pubescent, simple or

more commonly

^witha flowering branch intheaxil of each cauline _leaf;basal leaves withpetioles aslong^astheblades,thelatter thin,oblong^tonarrowly ovate, acute, abruptly narrowed at base, coarsely few-toothed, glabrous except the^ciliolatemargins, 6^to8 cm. long;cauline leaves

two

_pairs, the lowerpair similarto the basal

and

petiolate,theupper^sessile

and

usually conspicuously contracted^atbase; heads noddingⁱⁿ bud,large, each sub- tended atbase

by

a pair ^of

more

orlessmodified leaves; involucre cam- panulate, ^1.5cm._broad;tegules 10,green, thin, lanceolate, acute, viscidly pubescent, ^1.5 cm. long; rays about 10, lemon-yellow, 3 cm. long; disk florets 11-13

mm.

long; akeneshirsutulous, 6-8

mm.

long;pappusbright white, copious, short-plumose.

Skeena, Br. Col., /.R. Anderson,Sept. 11,1910. AlliedtoA._cordifolia Hook, but differingparticularlyⁱⁿ the basal leaves

and

the_{pair of} folia- ceous bractsatthe baseofeach head.

Arnicamyriadenia, n. sp.

Stemsclustered froma

much

branchedcaudex, erect, 30-50 cm._high, densely

and

_{minutelyglandular,becoming}increasingly hirsutuloustoward the heads; basal leaves apparentlynone;cauline leaves 4 or5_pairs with green blades

and

2 or 3 basal_pairs

much

reduced

and more

orlessscarious, all sessile

and

connate at base, the lower ones conspicuously sheathing, lanceolate becoming narrower upwards, acute, entire or sparingly den- ticulate, densely

and

minutely glandular on both faces

and somewhat

puberulentespecially onthe margins, 4-12cm. _long, exceeding the ^inter- nodes; heads 3 to 5, hemispheric, 2 cm. broad, short peduncled; tegules about 11, lanceolate, acuminate, green, denselyglandular

and somewhat

puberulent, equalling the disk flowers;rays bright yellow, 1.5 cm. _long;

disk flowers 40-60; pappus brownish, barbellulate; akenes _sparsely his- pidulous, notglandular; plant strongly odorous.

Mount

^Rainier National Park, Washington, growing^{in talus} on

Owy-

high, 5700 feet altitude, J. B. Flett No. 3211, August ^{13, 1919.}

The

plant

was

foundinnoother _place.