18 
Frurex ramosus, inermis, verisimiliter decumbens, fors subscandens. Rami patentissimi, fusci, læves, farcti, æquales, forterioren 
graciles, pubescentes, hinc suleulo exsculpti, indè vix angulati, internodiis subdivaricato-arcuatis. Forra slterná; peteotiuima, subsesallia, 
interstitiis majora, abrupt? pinnata, bijuga. ForoLa exacte opposita, cuneato-oblonga, acumine brevi, obtuso terminata, fitegerrima, 
deorsòm attenuata, latere interiore ut in Mimoseis angustiore, basi inæquali obtusiuscula, texturæ inter "—— dH ota ma 
mediæ, plana, lævia, suprà nitida, dum sicca minutim reticulata, subtüs eleganter nervoso-venosa, SAN FD PR depresso- 
excavatis, vagis instructa, costâ gracili, basi intumescente, rugosulâ et puberulâ, nervis freguentibus, filiformibus, parallelis, subtrans- 
versalibus, intra marginem arcuato-anastomosantibus, venis prominulis reticulatis; jugum exteriorum foliolorum deerme magis hi ggun 
torum, 6—8-pollicarium, omnind sessile; interiorum isto tertiå vel quartå parte minus, costâgue paullò ultra productâ brevissimè pitioiatum. 
PrTI0LUS communis brevissimus, lineas duas tresve emetiens, cylindricus, crassiusculus, transversè rugosulus, pubescens; continuatio 
ejus inter paria pinnarum gracilis, pennam columbinam crassa, uncialis vel sesquiuncialis, pubescens, suprà pláno-snlcata, terminata setå 
gracili, lineari, ciliata, unguiculari. SripuLa laterales, opposite, persistentes, foliaceæ, peltatim adnatæ, obliquè lanceolatæ, erectæ, 
parallelæ, cuspidato-acutæ, nervoso-lineatæ, unguiculares ad pollicares, rarissimé coalitæ in unicam intra-axillarem, oua et navicu- 
larem, dum juniores subtås margineque integerrimo puberulæ, nunc glandulå unå alteråve minutå kat end supra (pagina en 
opposite stipulæ obversâ) glabræ nudæque, basi parìm contractå, utrinque villosulå infra insertionem Marianina poa in 
lobulum magnum, transversè dilatatum, reniformem, semiunciam latum, retusum, subæquilateralem, plurinervium, venoso-reticulatum, 
(in viva patentem et horizontalem ?) in sicco sepiìs sursüm reduplicatum paginisque quasi reversis stipulam accessoriam #tanlantem, 
subtüs puberulum glandulisque duabus tribusve parvis, depressis notatum. Frores magnitudine circitêr illorum Tamarindi, coloris 
forsan let? aurantiaci Jonesiæ (quo gaudet Humboldtia laurifolia), pedicellati, æstivatione imbricati, dispositi in racemos axillares, 
solitarios, simplices, brevé pedunculatos, erectos vel adscendentes, oblongo-attenuatos, 5-pollicares, ferrugineo-villosos, foliolorum par 
infimum longitudine subæquantes. PEDUNCULUS communis pollicaris vel semipollicaris, rachisgue recta villosi, subangulosi ; pedicelli 
filiformes, approximati, sparsi, nunc geminati, unguem longi, uniflori, suffulti bracted brevi, lanceolatå, acutå, deciduà, dorso uniglan- 
dulosá, villosa. Carvx ovatus, monophyllus, suffultus bracteis floralibus duabus ovalibus, concaviusculis, utrinque obtusis, extüs villosis, 
versusque medium uniglandulosis, tubo turbinato paulld longioribus ; limbi quadripartiti laciniæ ovate, obtusiusculæ, patenti-recurvatæ, 
lineas tres emetientes, extis villosæ, intüs petaloideæ et venosæ, supremæ due in unam binervem, reliquis æqualibus latiorem connate. 
Pera tria, erecta, conniventia, subunguiculata, lanceolata, obtusa, obsoleté repando-crenulata, laciniis calycis ferð duplò longiora, glabra, 
venosa ; posticum impar (vexillo analogum) paulló majus, subovatum, evidentiìs unguiculatum, axi laciniæ calycinz supradicte binervi 
oppositum. STAMINA 5 fauci calycis inserta, distincta, rectiuscula, subparallela, laciniis calycinis, et quidem postica duo nervis laciniæ 
respondentis, opposita, petalis longiora; filamenta glabra, filiformia, omnia antherifera, æstivatione conduplicata, duo reliquis breviora ; 
antheræ majuscule, ovate, versatiles, biloculares, citils dilabescentes ; pollen globulare. OvanruM obliqué oblongum, compressiusculum, 
densè cano-villosum, oligo-(3- vel 4-)sporum, ovulis appensis, apice hinc acutiusculum, indè gibbosum, suffultum stipite brevi, calycis 
tubo hinc adnato; stylus subulatus, glaber, ante anthesin circinatus; stigma parvum, glabrum, capitatum. Fructus ignotus. 
This elegant, diffuse or rambling shrub is a native of the peninsula of India, probably of the mountains on the 
Malabar coast, where it was discovered by the late Dr. Benjamin Heyne. Independent of the curious structure of its 
stipules, and, in some degree, of its flowers, there is another consideration which claims for it a very high degree of 
interest, the genus to which it belongs being called after Baron Alexander de Humboldt, to whom it was dedicated 
nearly forty years ago by my revered preceptor Professor Martin Vahl of Copenhagen, one of the very first botanists 
of his time. Anxious for an opportunity of testifying my profound respect for the illustrious name which the plant 
commemorates, I have associated with it, as a specific appellation, a name not less immortal,—that of Mr. Robert 
Brown ; and 1 have therefore ventured to cancel the specific name, though perfectly unobjectionable, which was given 
to the plant by Dr. Heyne. In speaking of Amherstia in the first volume of this work, I alluded to a certain group of 
leguminous plants having a tubular calyx; to it Æumboldtia belongs, besides several others. In the Linnean method 
the genus stands in Pentandria Monogynia, in the section with polypetalous corolla and superior fruit, where it may be 
completely characterized by one single word: Legumen. In the natural system a greater detail is required; and I am 
indebted to Mr. Brown for the generic character, and for the general remarks which are placed at the head of this 
article, as well as for the subjoined amended character of Vahl's Jf. laurifolia, of which I have seen most beautiful 
specimens in the collection of the Horticultural Society of London, gathered in Ceylon by the late Mr. M‘Rae, with 
flowers resembling in general appearance and colour those of Jonesia Asoca. From the useful Catalogue of Indigenous 
as well as Exotic Plants growing in Ceylon, by the late Mr. Alexander Moon, we learn that this shrub is found at 
Caltura on hills, in the sort of mould called Kabook by the natives, and that the Singhalese name of it is Gal-karanda. 
The beautiful drawing and dissections from which the accompanying Plate has been engraved were executed by 
Mr. Griffith, to whose extraordinary botanical talents and accomplishments I have already had occasion thankfully to 
advert in the observation annexed to Phytocrene gigantea. 
H. laurifolia Vahl; pentapetala, foliis 3—5-jugis; stipularum lobo postico hinc productiore, acuto; ramulorum 
internodiis superioribus incrassato-fistulosis. —Brown. 
Plate COXXXIII. Fig. 1 and 3. Two branches, showing the stipules in their original position, the portion below the insertion being 
more or less in the same plane as that above. Fig. 2. A portion of the lower part of the stipule, with a gland :—this and all the following 
more or less magnified. 4. Flower-bud, with its bracteolæ. 5. Calyx just expanding, the bracteolæ removed. 6. Flower further 
advanced. 7. The same, the calycine segments removed. 8. Flower fully expanded, three of the stamens and two petals being re- 
moved, to show the opposition of the upper petal and two stamens to the corresponding two-veined calycine lobe. 9. Flower fully 
expanded, the anthers having fallen. — 10. Front view of the anther. 11. Back view of the same. 
ovary, with its pedicel adhering to one side of the tube of the calyx, and circinate style. 
of the ovules. 
12. Pollen-grains. 13. Young 
14. The same opened, showing the insertion 
