9. AZALEA, Don. Hook. (Azaleæ Sp. L .)
Cal. 5-partitus. Corolla brevi-campanulata, regularis. Siam. 5, basi corollæ inserta,
recta, æqualia. Antheroe rima longitudinali déhiscentes. Caps. 2-3-valvis, 2-3-locularis; dis-
sepimentis e marginibus introflexis valvarum.—Frutex humilis, procumbens, ramosissimus ;
foliis persistentibus parois coriaceis nitidis. Flores paroi, racemosi, terminales, rosei.
1. A. procumbens.—Linn.—Pursh, Fl. Am. v. 1. p. 154. Engl. Bot. t. 865. Bigel. Fl.
Bost. ed. 2. App. p. 82. Torrey, Fl. o f Un. St. v. 1. p. 232.
Hab. Barren grounds from lat. 65° to the Arctic Islands. Dr. Richardson. Captain Sir E. Parry, Sfc.
Newfoundland and Labrador. Dr. Morrison. Banks’ Islands and Mount Edgecombe, lat. 51°. N.W. Coast.
Mr. Menzies.—This has been found on the White Mountains of New Hampshire by Drs. Bigelow and Boott,
and by Mr. Greene.
10. LEDUM. L.
Cal. 5-dentatus persistens. Pet. 5, patentia. Siam. 10, receptaculo inserta. Filamenta
capillaria æqualia, recta. Stigma 5-lobum. Capsula 5-locularis, 5-valvis, valvis e basi sur-
sum dehiscentibus. Semina numerosa scrobiculata.
1. L. palustre; foliis oblongis linearibusve margine revolutis subtus ramisque junioribus
ferrugineo-tomentosis, stamina 5-10 corolla longioribus. Mich.—a. angustifolium, foliis
linearibus, floribus decandris.—L. palustre. Linn.—Pursh, FI. Am. v. \.p . 30. Hook, in FI.
Lond. 2d Ser. t. 210.—/3. latifolium; foliis oblongis staminibus non raro 5.—L. latifolium.
Ait.—Jacq. Ic. Bar. v. 3. p. 464. Pursh, FI. Am. v. 1. p. 300. Bigel. FI. Bost. ed. 2. p. 172.
Torrey, FI. o f Un. St. v. p. 437.
Hab. Chiefly in the more northern and barren regions. Dr. Richardson. Newfoundland. Miss Brenton.
Mr. Cormack. Labrador. Dr. Morrison. Kohlmeister. Hudson’s Bay (Dr. Richardson) to the Arctic seashore
and Islands (Dr. Richardson, Captain Sir. E. Parry, Sfc); often, however, mixed with specimens
which cannot be distinguished from 8. Cape Newenham. N. W. Coast, lat. 59°. Mr. Menzies. Rocky Mountains.
Drummond. Fort Vancouver on the Columbia. Dr. Scouler. Chamisso’s Island in Behring’s Straits.
Ckamisso.—Much used as a substitute for tea: the narrow-leaved var; is said by Dr. Richardson to be
preferred.
Ord. LV. MONOTROPEÆ. Nutt.
1. TOLMIEA. I nov. Gen.)
Calyx profunde 5-partitus, laciniis longis linearibus demum foliaceis persistentibus. Cor.
5-petala, petalis obovatis patentibus deciduis. Siam. 10 hypogyna. Anthères hast insertæ,
biloculares, longitudinaliter déhiscentes, fissura supeme latiore. Ovarium globosum liberum.
Stylus elongatus, (siccitate) spiraliter tortus. Stigma dilatato-capitatum. Capsula 5-loba,
5-locularis, loculis medio longitudinaliter dehiscentibus. Eeceptacula axilia. Semina numerosa,
scrobiculata.— Frutex glaber, ramis lignosis cortice laxo deciduo obtectis. Folia
sparsa decidua, in ramos articulata, lanceolata, mucronata, omnino sessilia, oblique obscure
venosa. Pedunculi axillares, solitarii? uniflori, folio breviores, bracteati; bracteis linearibus.
1. T. occidentalis.
Hab. North-West Coast of America. Mr. Menzies.—Much as the flowers of this interesting plant accord in
general structure with Pyrola, I can by no means consent to its forming a species of that Genus. The habit
is totally different, and more like that of a Kalmia than a Pyrola. I have seen no other specimens in my
Herbarium, except those (not very perfect ones) from Mr. Menzies. I have named the Genus in honour
of Mr. Tolmie, one of my most zealous Botanical pupils, and now resident, as Surgeon in the Hudson’s Bay
Company’s Service, in Puget Sound, N. W. America, where, it is to be hoped, he will rediscover this plant,
and enable us more fully to illustrate its history.
2. PYROLA. L.
Cal. 5-fidus, seu 5-partitus. Pet. 5 decidua, erecta v. patenta, Siam. 10. Antherce apice
insertæ, pendulæ, apice subbicornes poris duobus superne dehiscentibus. Ovarium subglo-
bosum 5-lobum. Stylus rectus vel curvatus. Stigma 5-lobum, nunc annulatum. Capsula
5-locularis, loculis medio longitudinaliter dehiscentibus. Eeceptacula axilia. Semina numerosa,
scrobiculata.— Herbæ vix suffrutescentes, humiles. Folia sempervirentia, subrotunda,
rarius oblonga, longe petiolata, integerrima vel dentata. S.capus nudUs vel squamosus, simplex.
Flores racemosi rarius uniflori, albi, lutescentes vel rubicundi.
* Stylus rectus. Stamina erecta.
li P. uniflora ; caule unifloro, foliis orbicularibus serratis, stigmate magno lobis 5 erectis.
—Linn.—Engl. Bot. t. 146. Mich. Am. v. 1. p. 251. Pursh, FI. Am. v. I. p. 299. Bigel.
FI. Bost. ed. 2. p. 173. Torrey, FI. o f Un. St. v. 1 ,p . 454. ,Rich, in Frank!. 1st Journ. ed. 2.
App. p. 18.
Hab. From Lake Huron (Dr. Todd) throughout Canada to lat. 64° (Dr. Richardson), and from Newfoundland
(Mr. Cormack, Dr. Morrison, Miss Brenton), and Labrador, (Kohlmeister, Dr. Morrison) to the
woody country in the Rocky Mountains. Observatory Inlet (Dr. Scouler), and near Mount St. Helens on the
West Coast, in shady woods, but not nearly so common as on the east side of the Rocky Mountains. (Douglas.)
2. P. minor; foliis ovato-rotundatis crenatis, floribus racemosis styli inclusi longitudine,
stigmate dilatato lobis 5 radiatis.—Linn.—Engl. Bot. t. 158, et t. 2543 (P. rosea.) Pursh,
FI. Am. v. l.p . 299. Torrey, FI. of Un. St. v. 1. p. 434.
H ab. Canada. Mrs. Percival. Woods in the Rocky Mountains. Drummond. Barren country from lat.
64° to the Arctic Coast (Dr. Richardson) and Islands ( Captain Ross). Labrador. Dr. Morrison. Observatory
Inlet, N. W. Coast. Dr. Scouler. Unalaschka. Chamisso.—The American plant exactly accords with
the European. Petals rounded, concave, not spreading.
3. P. secunda; foliis ovatis acutis, floribus racemosis omnibus secundis, stylo exserto,
stigmate dilatato 5-lobo.—Linn.—Engl. Bot. t. 307. Mich. Am. v. 1. p. 250. Pursh, FI.
Am. v. 1. p. 299. Bigel. FI. Bost. ed. 2. p. 174. Torrey, FI. o f Un. St. v. 1. p. 434. Rich,
in Frankl. ls£. Journ. ed. 2, App. p. 18.—/3. foliis angustioribus acuminatis.
Hab. Throughout Canada to the Mackenzie River (Dr. Richardson), and from Newfoundland (Mr. Cor