Culmi bipedales et ultra, 2-3 ex uno cespite, vaginisque rhachique ramisque primordialibus paniculæ omnino lævibus, glabris. Pedicelli floresque scabriusculi. Panicula 4-5-pollicaris, suberecta, apice subnutante, subpauciflora. Spiculæ nitentes, semipollicares. Glumæ carinatæ, trinerviæ; nervis prominentibus. Flos summus spicularum minor, masculus, neuter, abortiensve, et ad pedicellum villosum reductus. Palea inferior nervosa, sulcato-striata; apice bifida; laciniis bifidis in setulas albidas hispidiusculas productis: arista dorsali, fusca, subsemipollicari, i. e. flore duplo longiore, infra medium tortili. Folia radicalia plano-carinata, arescentia conduplicata, lævia, margine elevato, conspicuo, discolore, serrulato-scabro, deorsum sæpe undulato-plicata, s. corrugata; apice mirandum in modum obtusa, 2—3-pollicaria; caulina superiora vix semipollicaria. Vaginarum ora omnino nuda. Ligula elongato-triangularis, acuminata, arcte amplexicaulis, integerrima.

11. Cynosurus brizoides, nob.

C. panicula lanceolata, gracili, coarctata; spiculis neutris amentaceis, distinctis; bracteis setaceis, aristisque confertis, rigidis, scabris.

Hab. in graminosis convallium Maderæ rarior.

Gramen annuum, exile, subinconspicuum. Culmi plures ex eodem radice, tenues, 1-2-pedales. Folia flaccida, brevia. Panicula parva,

secunda, subpollicaris, simpliciuscula, æqualis; fructifera arcte contracta, sæpe violaceo-purpurascens; spiculis neutris spiculas Festuca, Poæ, aut Briza referentibus. Bracteæ aristæque rectæ, floribus multo longiores. 12. Festuca jubata, nob.

F. cespitosa: culmo superne paniculæque lanceolatæ, abbreviatæ, subcoarctatæ, subsecundæ, rhachi ramulisque pedicellisque puberulis, haud scabris: spiculis lanceolatis, 3-5-floris, glabris; flosculis aristatis, sursum aristisque scabris: foliis culmos superantibus subsetaceis, subcanaliculatis, vaginisque striatis, glabris; ligula brevissima, abrupta: radice perenni.

Hab. rariss. in rupibus convallium Maderæ, cum Deschampsia argentea nob., cui habitu simillima, nascens. Primus invenit Car. Lemann M. D. F. geniculata Willd. (Bromo geniculato L., Festuca stipoidei Desf.) proxima. Differt radice perenni; culmis haud geniculatis, dense cespitosis; pedunculis subsimplicibus, &c.

Culmi pedales, tenues, teretes, erecti, glabri, paullo infra paniculam contractam puberuli, foliis breviores, haud geniculati, nodis demum fuscis. Folia numerosa, conferta, elongata, omnia subsetacea, tenuia, gracilia, rigidiuscula, glabra, striata; superiora sursum subplanata, subcanaliculata. Glumæ inæquales, læves; altera spiculæ subæquans, altera brevior. Flores glabri; basi tantum læves, sursum aristisque scabri; arista flore longior. Pedicelli simpliciusculi, sc. sursum vix subdilatati, cuneati, ancipites; haud vero magis quam in multis aliis,

13. Festuca Donax, nob. Prim. in Trans. Cam. Phil. Soc. IV. I. p. 9. No. 9. (Character auctus, emendatus).

F. paniculæ glabræ, largæ, laxæ, diffusæ, subsecundæ, nutantis ramis elongatis, flexuosis: spiculis trifloris, lineari-lanceolatis, compressis, glomeratis; flosculis muticis linearibus, angulatis, scabris; glumis subæqualibus, spiculam æquantibus: paleis apice membranaceis, obtusis, abruptis, subbifidis, nervis prominentibus; exteriore quinquenervia, nervis æquidistantibus; interiore binervia, dorso canaliculata: foliis omnibus planis, elongatis, acuminatis, striatis, marginibus serrulato-scabris; culmis vaginisque lævibus, glabris; ligula exserta, ovata: radice fibrosa, perenni. The nearest ally of the species is F. sylvatica Vill. (F. calamaria Sm.)

14. Festuca albida, nob. Prim. in Cam. Trans. Iv. I. p. 10. No. 10.

B. brevifolia; foliis culmo multum brevioribus. In rupibus nuper invenit C. Lemann, M. D.

CYPERACEÆ.

15. Carex sagittifera, nob.

C. spica solitaria, androgyna, (?, superne), subpauciflora: stigmatibus duobus: fructibus oblongis, utrinque attenuatis s. fusiformibus, planatis, glabris, nitidis, reflexis, squama acuta, oblonga, persistente longioribus: culmo subtereti, superne subcompresso, hinc subcanaliculato: foliis angustissimis, elongatis, superne canaliculatis, inferne carinatis; carina marginibusque serrulato-scabris.

Hab. in sylvis Convallium Maderæ, in declivibus prope rivulos rarior. Dense cespitosa. Folia numerosa, conferta, culmos subæquantia s. excedentia, fere (pro latitudine) setacea s. filiformia. Fructus nitidissimi, magni, subremoti, squamisque fuscis, deflexis; inde sagittarum quasi cuspides plures, filo consertas, spica refert.

Cum C. decipiente Gay et La Perouse, monente am. Fr. Boott, M. D., conferenda. C. pulicari L. proxima, sed abunde distincta.

16. Luzula elegans, nob.

JUNCEÆ.

L. foliis lanceolatis, pilosis: corymbi erecti, supradecompositi ramis capillaribus, mox divaricatis, deflexis: pedunculis unifloris: bracteis sepalisque setaceo-acuminatis, capsula obtusa, mucronata longioribus: seminibus simplicibus, exappendiculatis.

Hab. in rupibus convallium Maderæ murisque rarior.

4-10-pollicaris; corymbo fructifero elongato, oblongo-angustato, semipedali; ramis ramulisque inferioribus elongatis, plerisque divaricato-refractis, tenuissimis, hinc inde pilosis. Flores solitarii, rufo-castanei, lucidi.

AMENTACEA.

17. Quercus mitis, Herb. Banks.

Since the publication of this, as a species, in the Cambridge Transactions (Vol. IV. I. p. 15. No. 21.), from the specimen preserved in the Banksian Herbarium, I am quite satisfied, from observation of two growing trees, evidently identical with the above, that it is nothing but a slight variety of Q. Suber L., with broader, more entire leaves than usual; such as might be expected in trees, growing like these, in cool, shady situations, at a considerable elevation. Both these trees are the inmates of gardens: and it is quite certain that Madera possesses no indigenous species of Quercus whatever.

URTICACEEÆ.

18. Parietaria gracilis, nob. Prim. in Trans. Camb. Phil. Soc. IV. I. p. 16. No. 23.

(Character emendatus).

P. lucida, pubescens, ramosa: caule ramisque gracilibus, erectis: foliis rhombeo-ovatis, rotundatis, abbreviatis, obtusis, trinerviis, petiolatis; petiolis filiformibus, folia æquantibus: glomerulis axillaribus; floribus pedicellatis; pedicellis glomeratis, aliquando subcymosis, apice tribracteatis: bracteis (involucri foliolis Auct.) unifloris, lanceolato-linearibus, obtusis, calyce (quadrifido, glabro) brevioribus, glanduloso-pubescentibus; post anthesin inæqualibus, uno duobusve dilatatis, foliaceis, calycem superantibus, adpressis.

Hab. in Maderæ rupestribus declivibus umbrosis rariss.

EUPHORBIACEAE.

19. Euphorbia refracta, nob.

E. annua, ramosa, pilosiuscula: ramis pubescentibus humifusis prostratisve, suffrutescentibus, geniculatis, flexuosis, refractis, alternis, apice dichotomis, ad genicula nodosis: foliis oppositis, oblique-oblongis, subrhomboideis, inæquilateralibus, argute serratis, hinc deorsum integerrimis, basi illinc auritis, semicordatis, subsexnerviis, brevissime petiolatis, utrinque pilosis: floribus pedicellatis, in dichotomia ramulorum solitariis, ad apices aggregatis; bracteis bracteolisque foliis conformibus, angustioribus: glandulis quatuor albidis, exappendiculatis, transverse ovalibus: capsulis triquetris, lævibus, glabris: seminibus minutis, nigrescentibus, subtetrahedris, ovalibus, punctato-rugulosis s. corrugatis.

Hab. in Maderæ regione inferiore et intermedio a mare usque ad 1800 ped. rarior.

20. Suæda laxifolia, nob.

CHENOPODEÆ.

S. fruticosa, glabra: ramis patulis, decumbentibus, laxis: foliis laxis, patentibus, linearibus, obtusiusculis, subcarnosis; supra depressoplanatis: floribus sessilibus, axillaribus, sub-solitariis; stigmate trifido, ante anthesin exserto; calycibus post anthesin clausis.

a. tenuifolia; foliis tenuibus; ramis debilibus, elongatis.

B. crassifolia; foliis carnosis obtusissimis, glaucescentibus; ramis validioribus.

Hab. in rupibus locisque saxosis maritimis Mad. et Portûs S"; a vulgatiss.; ab incolis "Barilla" dicta.

Calyx simplex, Suede Mert. veræ.

21. Suæda tomentosa, nob.

S. fruticosa, ramis fragilibus, superne foliisque carnosis, subteretibus, obtusiusculis, fasciculatis, incano-tomentosis.

Hab. in collibus maritimis Promontorii Pa Sao Lourenço dicti Maderæ rariss; etiam in Portu Sto.-In insulis Canariensibus invenit cl. P. B. Webb, arm. In Herbario Banksiano sunt exempla, a cl. Masson olim in "Insula Desertas prope Madeiram" et "Promont. S. Lourenço" sine floribus fructuve lecta, monente amico J. I. Bennett. Hieme (Dec. Jan.) floret. Calyx simplex; nec spinescens, nec membranaceodilatatus.

22. Rumex maderensis, nob.

POLYGONEÆ.

R. paniculis amplis, aphyllis, multifloris: floribus hermaphroditis: valvis nudis, intigerrimis, orbiculatis, reticulato-membranaceis: verticillis paucifloris: foliis hastatis, acutis, succulentis: caule frutescente. a. glauca.

B. virescens.

Hab. in rupibus Maderæ ubique, vulgatiss.

Suffrutescens, 1-2-pedalis. Flores mense Junii rupes maritimas excelsiores colore pulchre lateritio ornantes. A. R. scutato L. distinctam primus admonuit Cl. Lemann.

PLUMBAGINE.

23. Armeria maderensis, nob.

A. caule suffruticoso, simpliciusculo, humili, parum ramoso, ramisque brevissimis, subcespitosis: foliis fasciculatis, gramineis, latiusculis, lanceolato-linearibus, acuminatis, planiusculis, lævibus, lucidis, glabris, quinquenerviis, integerrimis: scapis teretibus, lævibus, glabris, foliis 3-4-plove longioribus: floribus pedicellatis, fastigiato-capitulatis; capitulis oblongis, truncatis, pedunculatis, umbellatis, bracteolatis; umbella