sinus, in a manner that, will be better understood by a reference to the magnified figure, than by a description.
In regard to fructification, this plant will hold a middle rank between SaAfraga and the following genus,
Leptarrhena; differing from the former in its free ovaries (connected only by an external woolly substance)
and in the ariUated seeds,—from the latter, in the two-colled anthers, the diciduous styles, the pendant seeds;
and from both, in the number of stamens and carpels: It is from the copious woolly substance, connecting
the carpels, that we derive the generic name.
Tab. LXXXVIII. E. pectinata. Fig, 1, A flower and bractea; fig. 2, Flower fully expanded; Jig. 3,
Ovaries; Jig. 4, Ovary laid open to shew the insertion of the ovules; fig. 5. Cluster of carpels ; J $ G,
Single carpel; Jig. 7, Seed with its arillus; Jig. 8, Seed or nucleus taken from the arillua; Jig. 9, Section
of do. showing the embryo; fig. iO, Leaf:—all more o r less magnified.
8. LEPTARRHENA. Br.
Calyx campanulatus brevis quinquefidus, tubo lato. Stamina decern ad orem tubi inserta.
Antherce uniloculares bivalves. Petala quinque Iineares. Pistilla duo, libera , in stylum
brevem persistentem a tte n u a te Stigma obtusum. Carpella duo, intus longitudinaliter
dehiscentia. Semina scobiformia ad marginem versus basin valvarum inserts erecta.__
Herbse habitufere Pyrolrn locis frigidis America borealis. Scapus nudus. Flores racemoso-
paniculati. Folia coriacea peremiantes Integra grosse serrata, peliolis latis vuginantibus.
1. L.pyrolifolia; (T ab. LX X X IX .) Br. in Parry's 1st Voy. SuppLp. cclxxiii. Seringe,
in De Cand. Prodr. v. 4. p . 48.— L . amplexifolia. Seringe, in lie Cand. Prodr. v. 4. p. 48.__
Saxifraga pyrolifolia. Don, Saxifr. in Linn. Trans, v. IS. jt>. 389__ S. amplexifolia. Stemb.
Rev. Saxifr. Suppl. p. 2. t. 2.—S. micrantha et S. coriacea. Fischer MSS. (fide Seringe.)
Radix perennis, subfusiformis, elongatus, fibrosus. Caulis brevis, ascendens, simplex vel ad basin ramosus,
duas ad tres uncias longus foliosus, petiolis membranaceis latis omnino tectus. Folia elliptica, obtusa, coriacea,
plana, duplicato-serrata, nervosa, nervis obliquis, supra nitida viridia, subtas pallida. Petioli subunciam longi,
insigniter dilatati, canaliculati, subciliati, membranacei, vaginati. Scapus spitbameus ad pedalem et ultra,
erectus, rigidus, foliis parvis vel squamis duabus oblongis serratis instructus, pubescens superne pnecipue.
Racemus compositus, subcorymboso-paniculatus. Flores parvi, inconspicui. Calyx profunde quinquefidus,
pubescens: Tubus brevis, segmentis oblongis, obtnsis, erecto-patentibus. Petala linearia, obtusa, vix calycem
superantia. Stamina decern longitudine petalorom, quinque petalis et quinque segmentis calycinis opposita,
distincta. Filamenta subulata. Antherce subgloboso-tetragonse, dorso affixse, uniloculares, bivalves. Pistilla
2, distincta, libera. German ovatum, uniloculare, pluri-ovulatum, ovulis lineari-elongatis, erectis, prope
basin ad marginem valvarum insertis. Styli attenuati, subdivergentes. Stigmata obtusa. Carpella 2,
oblongo-ovata, stylis attenuatis terminata, intus longitudinaliter dehiscentia. Semina non vidimus, sed, (fide
111. Brown,) scobiformia, testa utrinque ultra nncleum ovalem elongata, subulata.
Hab. Unalaschka. (David Nelson in Herb. Banks.') Chamisso. Behring’s Strait. Menzies in Herb, nostr.
“ Height of Land” on the West side of the Rocky Mountains, in lat. 52°. Drummond.—The accurate Mr.
Brown distinguished this plant as a genus, in his valuable paper on the plants of Melville Island above
quoted; and its habit as well as fructification, amply justify him in so doing. We regret that we have not
seen perfect seeds. Our specimens from Chamisso and Mr. Menzies are in flower, and the only fertile one
from Mr. Drummond, though in fruit, has shed its seeds.
Tab. LXXXIX. L. pyrolifolia. Fig. 1, Flower; fig. 2, Back view of a stamen; fig. 3, Front view of
do.; fig. 4, Pistil; fig. 5, A pistil laid open to show the insertion of the ovules; fig. 6, Ovule; fig. 7,
Carpels surrounded by the persistent floral coverings:—magnified.
O rd. XLIII. UMBELLIFERÆ. Juss.
Subord. I. O rthospermæ. Albumen intus planum a p t planiusculum.
* Umbellis simplicibus aut imperfectis ; Vittisfructus nullis.
Trib. I. H ydrocotyleæ. Fructus a latere compressus ; mericarpiis dorso convexis
aut axnttis.
K j HYDROCOTYLE. Linn.
Calycis tubus subcompressus, limbus margo obsoletus. Petala ovata integra acuta apice
recto. Fructus a latere plano-compressus biscutatus. Mericarpia evittata, jugis 5 filifor-
mibus, carinali et lateralibus sæpe obsoletis, intermediis 2 accretis. Semen carinato-com-
pressum.—Herbæ rarius suffrutescentes, scepius tenues, aquaticoe. Umbellæ simplices.
Involucrum oligophyllum. Flores sessiles aut pediceUati albidi. DC.
1. H. Americana; glaberrima, foins orbiculato-reniformibussublobatisduplicato-crenatis
9-nerviis, umbellis capitatis 5-floris, superioribus subsessilibus, inferioribus breve peduncu-
latis. DC.— Linn. Sp. PI. p . 234. Rich. Hydroc. n. 1 9 . / 10. Mich. Am. v. 1. p. 162.
Pursh, Fl. Am. v. 1. p . 190. Elliott, Carol, v. 1. p . 348. Bigel. Fl. Bost. ed. 2. p . 109.
Torrey, Fl. 6f Un. St. v. 1. p . 303. D e Cand. Prodr. v. 4. p . 64.
Hab. Canada. Lake Huron. Dr. Todd.
2. H. vulgaris; foliis peltatis orbiculatis duplicato-crenatis 9-nerviis,' petiolis apice
pilosis, umbellis capitatis subbifloris, fructu basi subemarginato concolori. D C .—Linn. Sp.
PI. p . 338. Engl. Bot. t. 751. Mich Am. v. 1. p . 161. Elliott, Carol, v. 1. p . 345. Pursh,
FI. Am. v. l . p . 191. Torrey, FI. o f Un. St. v. 1. p . 303. D e Cand. Pro d r. v. 4. p . 59.
Hab. Canada. Pursh.
Trib. II. Saniculeæ. Fructus ovato-globosus.
2. SANICULA. Linn.
Calycis tubus echinatus ; lobi foliolosi persistentes. Petala erecta conniventia obovata
emarginato-infracta in lacinulam longitudine petali. Fructus subglobosus non sponte
partibilis. Mericarpia ejugata multivittata, aculeis uncinatis dense tecta,- carpophoro nullo
distincte, seminibus semiglobosis.— Herbæ perennes. Folia radicalia petiolata palmatiloba,
lobis cuneatis apice inciso-dentatzs. Caulis nudus aut parce foliosus. Umbella generalis
pauciradiata ; involucri foliolis p o n d s sæpe divisis. Umbellula pluriradiata, involucri
foliolis pluribus integris. Flores in eadem umbellula masc.foem. aut hermaphr.—DC.
1. S. Marylandica ; . foliis quinato-digitatis inciso-serratis inferioribus pedatis longe
petiolatis, floribus polygamis, masculis pedicellatis, calycis lobis integris.—Zinn. Sp. PI. p .
339. Jçtcq. Ic. R a r. t. 348. Mich. Am. v. 1. p . 162. Pursh, Fl. Am. v. 1. p . 191. Bigel.
FI. Bost. ed. 2. p . 109. Elliott, Carol, v. 1. p . 348. D e Cand. Prodr. v. 4. p . 84.—S.
Canadensis. Linn. Sp. PI. p . 339. Pursh, Fl. Am. v. 1. p . 191. D e Cand. Prodr. v. 4.
p . 84.
Hab. Throughout Canada, and as far as the Saskatchawan. Drummond. Newfoundland. De la Pylaie.
Undulating gravelly soils, near Fort Vancouver. Douglas.—The accurate Dr. Torrey has, in my opinion,
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