Five new plants from New Mexico

Vol.

XXVI,

pp. 115-120

May

21,1913

PROCEEDINGS

OF 111E

BIOLOGICAL SOCIETY OF WASHINGTON

FIVE NEW PLANTS FROM NEW MEXICO.

BY PAUL

C.

STANDLEY.

[Published by permissionof the Secretary of theSmithsonian Institution.1

During

^the

summer

of

1912 only

^a

few

_plants

were

collected in

New _Mexico,

at least so far as is

known

^to the writer. Prof.

T.

D. A.

Cockerell

has forwarded

a

small

collection

from

the region

about Santa

_Fe, in

which

there ^is

an apparently unde-

scribed speciesof Nuttallia.

Mr. E. O. Wooton _gathered

a

few specimens

^{in the}

San Andreas Mountains

in

Dona Ana _County, two

of

which,

^a

Chrysothamnus and an

Amelanchier,

seem

to

be new. More

careful

examination

ofthe

southwestern specimens

of

Amsonia

in the

U.

S.

National Herbarium,

^atthe suggestion of

Dr.

P.

A. Rydberg,

^reveals

two new

species ^{of this}

group, both

of

which occur

in

New _Mexico,

besides

extending

^to

adjacent

^States. Descriptions ^ofthesefive species are

published herewith.

Nuttallia springeri Standleysp. nov.

Stems _slender, with

numerous

divaricate branches, white, scabrous- puberulent, glabrate ⁱⁿ age; cauline ^leaves (basal ones notseen) small, jo to 35

mm.

_long, sessile, bright green, scabrous-hirtellous, linear, the uppermost ^{entire, the} lower remotely dentate or laciniate-dentate, the teeth or lobes divaricate; Mowers numerous, solitary at theends ofthe branches, orrarely axillary,naked orsubtended by^1or2 leaf-like bracts;

hypanthium

^{about 6}

mm.

_{Long, the calyx} lobes ofabout the

same

_length,

linear-triangular, long-attenuate, spreading or reHexed, scabrous-hirtel- lous; petals 12 to 15

mm.

_{long,spatulate,} obtuse, bright yellow, narrowed into a long claw,accompanied by usually5 petal-likestaminodia; stamens numerous, the filaments slender; capsules cylindric, 8 to 10

mm.

_long,

scabrous; seedsflattened, 1.75

mm.

ⁱⁿ diameteror less, narrowly winged or onlymargined, pale brownish.

Type

^{inthe U. S. National} Herbarium, No. 661,103, collected

on

the J^i—Proc.Bioj>.Soc.Wash., Vol.XXVI,1913. (115)

*

116

Proceedings ^{of the} Biological Society of

Washington.

mesa

abovetheAbbott Ranch,^RitodelosFrijoles,northwestofSanta_Fe,

New

_Mexico, inAugust, 1912,

by

^Mr.

Frank

Springer (No.4).

This proposed

new

_species is related to

N.

multicaulis

and

N. multi- flora, but in most of its dimensionsit issmallerthan either. Nuttallia multiflora, particularly, has

much

larger flowers, as well as broad and

more

dissected leaves.

The

seeds, too, are unlike thoseofthetwo_species mentioned.

The

specimens were forwarded by ^{Prof. T. 1).} A. Cockerell.

At

his request, the _species has been

named

inhonorof itscollector, Mr.

Frank

Springer,

who

iswell

known

for hiscontributionsto the science _{of pale-} ontology.

Amelanchier

australis Standleysp. nov.

Slender shrub 2 meters high ^{or less} with ascending branches; older twigs glabrous,

brown

_{or grayish brown,} the younger ^ones tomentose or villouswith white _hairs; buds _ovoid,

more

or less villous; leaf blades thick

and

coriaceous, ovate-oblong or rounded-oblong, ^{20 to 32}

mm.

long, 14 to 25

mm.

broad, rounded to nearly truncate ^at the apex ^or sometimes _acutish, broadly rounded or truncate at the _base, pale ^dull green, ^villous

on

the upper ^surface with mostly appressed hairs,

more

densely ^villous or tomentose beneath, coarsely crenate-serrate abovethe middle, the ^teeth abruptly short-pointed; petioles slender, 5 to 7

mm.

long, villous or tomentose; stipules 6 to 10

mm.

_long, subulate, reddish brown, ^villous, soon _deciduous; racemes _{terminal, slender,} sometimes

somewhat

paniculate, eachwith 6 to 15 flowers; pedicels slender, erect, 5to 15

mm.

long, densely ^villous with mostly appressed hairs; hypan- thium in anthesis campanulate, bright green, sparingly ^villous; calyx lobes bright green, lanceolate ^to narrowlyelliptic or linear-lanceolate, 4 to5

mm.

long, acute, villous on bothsurfaces, after anthesisreflexedor spreadingandaccrescent,equaling orexceeding^thefruit; petalsnarrowly oblong^orelliptic-oblong, narrowedatthe _base, obtuse, ^{5 to 6}

mm.

long;

mature ^fruit not seen, the best developed

immature

ones _spherical, slightly villous, 5to6

mm.

in diameter.

Type

^{intheU. S. National}Herbarium, No. 661,083, collected atRopes Spring ^{in the} San Andreas Mountains,

Dona Ana

_County,

New

Mexico, September^23, 1912, by^{E. O.}

Wooton.

Thisisas closely related toAmelanchieroreophila A.^{Nels.as to}any

New Mexican

_{species. That,however,} so far as

now known,

reaches only the mountains of thenorthern _partof the _State, occurringⁱⁿ theTransition Zone.

The

locality for A. australis is in the

Upper

^{Sonoran Zone.}

Amelanchier oreophila ^differs from this shrub of southern

New Mexico

in its thinner, bright green leaves, fewer flowers,

and

less

abundant

pubescence.

The new

_species here described is best distinguished by

itsbright green,^foliaceouscalyx^lobes,whichareunlike thoseof

any

^other North

American

_species.

Standley

—

Five

New

^Plants

from New

Mexico.

117 Amsonia

arenaria_Standley sp.nov.

Perennial from a thickened

woody

^{root; stems}stout, erect, 14 to50cm.

high,

much

branched above the _base, the branches ascending ^or spread- ing, tomentose with branched white hairs; leaves numerous, ^{linear, or} the lowest rarely lance-linear, 20 to 55 nun. _long, ^:'.

mm.

wide or less, acutish, ^sessile, thick and

somewhat

_fleshy, ^I-nerved, abundantly tomen- tose

when

_{young, glabrate} in age; flowers numerous, ^{in rather} dense clusters, theseshorter thantheleaves; pedicels4

mm.

_{long or}less,

some

of the flowers usually sessile; calyx ^{5 to 7}

mm.

long, tomentose, soon Incomingglabrate, thelobes lanceolate, with long subulatetips; corolla salverforin, thetube8 to It)

mm.

long, dilated upward, constrictedatthe mouth, glabrousoutside, pubescent within, the^{lobes of} the limb oblong or oblong-obovate, ^S

mm.

_long,obtuse, spreading;stigmaspherical,with two rounded lobes above; ^follicles stout, 4 to 9 cm. _long, constricted betweenthe seeds,attenuateatthe apex,sessile,tomentulose

when

young, glabrate in age, ¹ to 3-seeded; seeds ^{8 to} 23

mm.

_{long, elliptic} ^{or nar-}

rowly oblongⁱⁿ outline,obtuse or truncate ^atthe ends, palebrown.

Type

^{in the I'. S. National} Herbarium, No. _(j^l,049, ^collectedonsand- hillsbetween Strauss and Anapra, nearthe southeast cornerof

Dona Ana

County,

New

.Mexico, in July, 1912, by

Elmer

Stearns (No. 372).

The

locality^isnear El Paso, Texas, onthe westside oftheRioGrande.

The

_{typespecimens} bearfruit only,

and

the description ^of the flowers

isbased

upon

Pringle's 6796

and

_partofthe

Mexican Boundary

Survey's No. 1053, cited below.

Amsonia

arenaria ^is nearest A. tomentosa Torr.,

and some

of the materialreferredherewas determinedasthat_speciesby

Gray and

Torrey.

The

_{two occupy} entirely different ranges, A. tomentosa being

known

only from northern Arizona, southern Utah, Nevada,

and

southernCali- fornia.

The

^latterhas lanceolateto ovate leaves whichare permanently tomentose

and

_{give the}plant a whitish appearance^{that is} characteristic even _{in age.}

Amsonia

arenaria is

somewhat

_grayish

when

_{young, but}

-.»,n losesmost ofitspubescence

and

_appears^adulldarkgreen.

Additional specimens examined:

New

Mexico^:

On

sandhills,

San

Andreas Mountains,

Dona Ana

County, September^{23, 1912, Wootpn.}

Chihuahua: Between

Eaguna

^de<

iuzman and Laguna

^deSanta Maria, 1891,

Hartman

724; gravellyplains near

Lake Guzman,

^alt. 1200 meters, 1898,

Pringh

^6796.

Without definite locality: Mexican

Boundary

Survey1053, in part.

Upon

^{the National}

Herbarium

sheet of No. 1053collectedby^theMexi- can

Boundary

Survey ^are three branches, each representing a ^different species.

One

^is

Amsonia

arenaria, another isA. hirtella, andthe third represents an apparently undescribedspecies. Thislastisperfectlyglab- rous and resembles A. longiflora, but the flowers are

much

smaller than

in that species. ^{It is} probably the plant from

Lake

Santa Maria, Chi- huahua, referred to byTorrey*^{asa glabrous} formofA. tomentosa.

•U.S.an.lMex.Bound. Bot.158. 1859.

IIS

Proceedings ^{of the} Biological Society of

Washington.

Amsonia

hirtella Standleysp. nov.

Perennialfroma

somewhat woody

^root;stemsstout, erect,

50cm.

_high, with rath'erfew erectorascending branches abovethe middle, abundantly hirtellous; leavesnarrowlylance-linear,30to45

mm.

long, 2 to 5

mm.

wide, acute,attenuateto a petiole-like base,abundantlyhirtellous, especiallyon the margins and ^{veins; flowers} numerous, ⁱⁿ dense terminal or lateral clusters,usuallyexceeding^the leaves; pedicels short, 2

mm.

long or less, denselyhirtellous; calyx ^{5 to G}

mm.

_long, glabrous or nearly ^so except forthe long^linearhirsute tips ofthe linear-lanceolate lobes; corollatube about 14

mm.

long, dilated upward, constricted at the mouth, ^villous within; corolla lobesoblong^oroblong-oval, ^{5 to G}

mm.

long,obtuse.

Type

^{inthe U. S.National}

Herbarium

Xo.691,857, collected in canyons nearthe

Upper

^Corner

Monument,

^southern Grant County,

New

Mexico,

May

^{1, isirj,} by ^{Dr. E. A.}

Mearns

(Xo. _117).

This _plantseemsto bemostclosely related to

Amsonia

_longiflora ^Torr.

That_species^is_glabrousthroughout

and

hasflowers nearly three times^as large.

The

writerwould referjiere provisionally thefollowing specimens:

Chihuahua: Candelaria. 1911, Stearns 228.

Texas: Bofecillos,

May

^18, 1881, Haeard.

Withoutdefinite locality: Mexican

Botmdary

Survey1053., in part.

These ^last three specimens ^all have

young

^{or mature fruit}

and

no flowers.

The

fruit is slenderly cylindric, continuous, with no constric- tionsbetween the_seeds, glabrous, ^(Scm. _{long or}less.

The

_pubescence ^of theleaves

and

stemsissimilartothatfoundin the type^of

J

^._hirtella, but

it is

more abundant

andisscattered all over both surfaces of the leaves.

The

calyx, too, ^is densely ^hirtellous throughout.

When

the corollas of this form are _seen, it

may

^befound that the plantfrom farther east

and

south isreallyadifferent species.

Chrysothamnus

elatior Standley sp.nov.

Slender shrub ¹ meter high or less; older branches _{whitish, striate,} puberulous^orglabrate, erect; leavesnumerous,^erect or ascending,linear, 20 to25

mm.

_{long, 2}nun. wideor _{less, acutish,} sharp-pointed, narrowed

at the _base, the uppermost narrower, shorter,

and

with

more

or less involute margins, ^all thick, rigid, finely

and

_{densely puberulous} with white _hairs; inflorescencerather denselycorymbose,

composed

^{of few to}

many

heads; peduncles ascending, ^{5 to 13}

mm.

_long, puberulous, ^fur- nishedwithshortbract-like leaves; involucresnarrow, ^{t( to 12}

mm.

high, 5-angled by the pentastichous ^bracts; these in 5 or G _series, the outer successively shorter,theoutermostoblong-lanceolate

and

_acute,theinner linear-oblong, abruptlyacuminate^toa slender_{tip, all}

somewhat

coriace- ous, pale,withshort greentips; flowers usually5; corolla slender, 12

mm.

long, glabrous; achenes _glabrous, ^li or 7

mm.

_long, 5-angled, with a prominent ^nerve on each face; pappus yellowish white, rigid, about14

mm.

long.

Staruttey

—

Five

New Hants from New

Mexico.

119 Type

^{in the U. S.} National Elerbarium, No. 661,098, collectedonsand- hills north ofGoldenbergs Ranch, San Andreas Mountains,

Dona Ana

County,

New

Mexico. October _{12, 1912,} by ^{E. (>.} Wooton.

This belongs ^{to a} group ^of which three other _species occur in

New

Mexico, Chrysothamnus pulchrflus^(A. Gray)Greene, C. depressus Nutt., and_{C. baileyi}

Wooton &

_Standley. All of these are

much

lower plants than our

new

species, seldom exceeding ^a height^of."><»cm. C. depressus

is found _only in the northern _{part of} the State. It has broad leaves which^aremerely scaberulous, and_thin, long-acuminate^bracts. Chryso- thamnus _pulchellus and C. _baileyi, both of which

grow

^{in eastern}

and

southern

New

Mexico, haveglabrous ^leaves and broader,

more

obtuse bracts.