110 CRUCIFERjE . C amelina.
thrn^°reSOf 41x6 ■Ajrcflc S e a !—Root fibrous, thiekened at the neck and
throwing up several short simple or branching stems. Leaves glabrous Ra-
Silide“I““ 1“ ™ h * Ä y W S f f ’B Ä
c -officinalis {Linn.) : silicles globose-ovate, half as long as the pedi-
DC rS ? b o / T S^ ? tl0n r -C0rd5ie;i Cauline ones ovate> toothed or angled.
D<t~ J fit b 551l 1 ' 173 5 Hook.Arctic America, ex Hook—A native also of Europefi.. Bor.-Am. 1. p^. 57.
5. C Danica (L in n .): silicles'elliptical [or subglobose] as long as the
0 , ^ . “ * « * . B i p n d r .
ro e Ct4C J^merXCa’ 6X ^ nat^ e a^so ° f the northern parts of Eu-
6. C. tndactyhtes (DC.): silicles globose-ovate; cauline leaves with a
single tooth on each side (as if 3-lohed). D C.sy st 2 p 367
Labrador, Herb. Banks, (according to DC.)
7. C. Grcenlandica (Linn.): silicles ovate, as long as the pedicels; radie
r leaves petioled, remform, entire ; cauline ones few or none. DC. prodr.
Greenland—A native also of Norway and Iceland
8. C. spathulata (Schlecht.) : stellately pubescent; silicles glbbose-ellio-
Tierh ’ i v™ spatulato, coarsely toothed, acute, veined. Hoolf.— Schlecht, in
Jterb. Willd. ex DC. syst. 2. p. 369 ; Hook. fl. Bar.-Ant 1 p 57 O
septentrionabs, DC prodr. 1. t. 174. Draba grandis, Lan g sd o rf/ DC
syst. 2. p. 3oo; Deless. ic. 2. t. 47.
Aleutian Islands, lat. 56°-57.—Septum fenestrate. DC.
9. C. siliquosa ( Schlecht.) : silicles oblong-lanceolate, apiculate with the
hailf aS ^ oS7.7h\ ? e-dlxels7; 1®aves, oWong, entire, attenuate at the base, pubescent. Schlecht, tnherb. Willd. ex DC. syst. 2. v 369 • TTnnh
fl. Bor.-Am. 1. p. 57. y F' ;
Rocky places in Unalaschka.—Flowers in dried specimens yellowish DC
—Nearly related to the preceding. Chamisso. 3
T hibe VI. CAMELINEiE. DC.
Silicle dehiscent, ovate or oblong, compressed parallel to the septum,
or turgid ; valves plane or convex : septum elliptical or ovate
sometimes incomplete or none. Cotyledons plane, incumbent contrary
to (l. e. their margins looking towards) the septum.
25. CAMELINA. Crantz ; DC. syst. 2. p. 514.
Silicle obovate or somewhat globose; valves ventricose, dehiscing with
a part of the style; cells many-seeded. Style filiform. Seeds oblong not
bordered.
1. C. sativa (Crantz) : silicles obovate-pyriform; style rather long- stiff-
ma simple; leaves lanceolate, sagittate, nearly entire.—DC prodr 1 ® 201 •
Fields and cultivated grounds ! May-June. Introduced.—(T) Stem 14-3
FloweVfsm^,1y i at LeaV6S Usua^ roughVh-pubescent.
P latypetalum. C R U C IFE R S . I l l
2. C. barbarecefolia (DC.) : silicles globose; stigma capitate ; leaves oblong,
pinnatifid, obtusely auricled at the base; stem villous below. DC. syst.
2. p. 516; Deless. ic. 2. t. 70 ; Cham. % Schlecht. in Linncea, 1. p. 29;
Hook.Jl. Bor.-Ani. 1. p. 65.
Bay of Eschscholtz, N. W. America, ChamiSso.—2( Habit of Nasturtium
amphibium.
26. BRAY A. Sternb. $ Hoppe ; DC. sy st.; Hook, exot.fi. 1 .1.121.
Silicle (or rather silique) oblong, terete, torulose. Style short or none.
Septum cleft in the middle. Seeds about 6 in each cell. Calyx equal at the
base, erect.—Perennial herbs, with thick long descending, roots. Leaves
mostly radical, narrow. Scapes short. _ Flowers small, white or pale purple.
"We follow Hooker in placing this and the following genera in Camelineas ; but
are not satisfied that this is their proper station.
1. B. alpina (Sternb. & Hoppe): leaves glabrous ; scapes sparsely leafy;
racemes capitate in fruit. Hook.—DC. prodr. 1. p. 141 $ Deless. ic. 2. t. 22;
Hook. fl. Bor.-Am. 1. p. 65.
0. Americana (Hook. 1. c.) : style rather long, slender.
Rocky Mountains, lat. 52°-57°. (var. B.)—Leaves linear-spatulate, entire.
2. B. glabella (Richards.): leaves glabrous; scapes mostly leafy; racemes
elongated in fruit, loose. Hook.—Richards, app. Frankl. 'journ. p.
25 ; DC. prodr. 1. p. 141; Hook. fl. Bor.-Am. 1. p. 65. _
Arctic America, Richardson.—If Scape sometimes hairy. Flowers mostly
white. Hook.
3. B. ? pilosa (Hook.): leaves pilose; scapes leafless ; racemes elongated
in fruit. Hook.! fl. Bor -Am. 1. p. 65. t. 17.
Arctic Sea at the mouth of Mackenzie River, Richardson !— 1[ Leaves
much crowded, linear-lanceolate. Scape 2-3 inches high. Silicle (immature)
oval hairy; cells 8-seeded. Mature fruit' not seen.—Probably a distinct
genus.
27. PLATYPETALUM. R. B r .in Parry's 1 stvoy. app. p. 266.
Silicle oval, compressed, many-seeded; valves convex. Style very short.
Calyx somewhat spreading. Limb of the petals dilated.—Habit of Braya,
but differing in the fruit.
1. P. purpurascens (R. Brown): stigma with 2 spreading lobes; style
distinct; scapes naked or with a single leaf; silicles nearly glabrous. R. Br.
1. c. ; Hook.! fl. Bor.-Am. 1. p. 66. t. 23. Braya arctica, Hook, in Parry's
2nd voy. app. p- 387.
Arctic America! from Mackenzie River to Spitzbergen.— If Scapes
several from one root, in flower scarcely an inch high. Leaves lanceolate,
mostly' entire. Petals white, tinged with purple (R .B r .) : lamina broader
than long, very obtuse. Silicles in long racemes, about one-third of an inch
in length ; cells about 8-seeded. Septum complete, thin: areolae transverse.
Seeds not margined.
2. P. dubium (R. Brown): stigma undivided, nearly sessile; silicles and
scapes pubescent. R . Br. 1. c.
Melville Island.—Flowers not seen. R. Br.