50 
of Thurso in Scotland, Assistant Surgeon in His Majesty's 8th Regiment of Light Dragoons, and attached to the 
Mission sent by the Bengal Government to Siam and Cochinchina, in 1821. I had the happiness to become 
acquainted with that gntleman at Singapur, towards the close of 1822, and we returned together to Calcutta by 
the same ship. Unfortunately a deep-rooted consumption, caused by the enthusiastic zeal with which my amiable 
friend performed his duties, both as surgeon and naturalist to the expedition, made such frightful progress 
during the latter part of the voyage, that scarcely any prospect remained of his ultimate recovery. Still his return to 
Europe held out a feeble hope of his valuable life being prolonged ; but that hope was soon frustrated ; he died on 
his passage to England. Of the excellence of my friend's character, and the large share of knowledge which he pos- 
sessed, it would be presumption in me to attempt offering any further proofs than what are contained in his Journal 
of the Mission, which was published, together with a short account of his life, by the late Sir Stamford Raflles, who 
highly appreciated his worth. He had made the most extensive and valuable collections in all branches of natural 
history ; but owing to his painful and distressing illness, they were much injured and reduced before they reached 
their final destination at the Honourable East India Company's Museum. 
I should have adopted the generic name Gurua given to our plant by Dr. Hamilton, although founded on a wrong 
native name supplied to him, if I had not printed the accompanying plate before I became aware of their identity, 
and if I had not been quite sure that that worthy botanist had he lived would readily have consented to the change. 
Plate CLXII. Fig. 1. 2. Flower, enlarged. 3. Stamen, detached. 4. Retinacle, viewed from both sides, two pollen-masses 
adhering to the inner. 5. Pistil. 6. A pair of follicles. — 7. One of these, detached and opened. 8. Seed. 9. A young shoot. 
RHAPHISTEMMA. 
Cororra campanulata, tubo amplo, cylindrico, æquali, limbo 5-partito, patente. Corona staminea simplex, 5-phylla, 
foliolis carnosis, erectis, subulatis, medio ventricosis, filamentis oppositis, apice subexsertis.  Antheræ membranaceæ, 
semiorbiculares, 2-loculares. Pollinis masse cereaceæ, ovate, ventricosæ, basi adfixæ, pendula. Stigma pentagonum, 
muticum.  Folliculus solitarius, oblongus, subventricosus, levis. Semina comosa. 
Classis Linneana : Pentandria digynia. 
Ordo naturalis : Asclepiadee, Brown. 
Habitus: Frutex volubilis, levis, lactescens, foliis magnis, cordatis, floribus speciosis, albis, racemoso-corymbosis. 
Proximé accedit Kanahie, Br. que vero differt habitu erecto, columná semiinclusa, corona stamineá apici tubi 
filamentorum insertá demümque folliculis gracilibus. 
RHAPHISTEMMA PULCHELLUM. Tab. 163. 
Pergularia ? campanulata, Herb. Hamilt. 
Asclepias pulchella, Roxb. Hort. Beng. p. 21. 
Nomen Bengalense, Kulmi. 
Habitat in Sillet Bengale, undé in Hortum Calcuttæ Botanicum introduxit M. R. Smith; in Gualpara, F. Hamil- 
ton, M.D.; in Tavoy, Gulielm. Gomez; in Pegu prope Rangoon, 1826. Floret sub pluviis ; fructificat Decembre. 
Frurex magnus, latè super alios frutices arborumque truncos volubilis, ramosissimus, lactescens, omnibus partibus glaberrimus. Ram: 
cylindracei, exteriores longi et graciles. Forra magna, opposita, distantia, patentia, petiolata, ovato-cordata, acuminata, integerrima, 
margine obsoletè repandula et subundulata, ceeterúm plana, sinu basis amplo, lato, medió suprà acervulo corpusculorum subulatorum, 
carnosorum, lobis rotundatis, distantibus; membranacea, 3—5-pollicaria usque ad palmaria, quin majora, levia, lætè viridia, subtòs 
exstantèr 7-nervia, tenuitèr venosa, dum juniora glaucescentia. Petro teretes, foliis dimidio breviores, suprà levitér sulcati, basi 
parùm incrassati inque axilla (more familiæ) fasciculo ciliarum brevium, ramum serie transverså ambientium. FLORES magni, pollicares, 
candidi, demòm lutescentes, inodori, glaberrimi, longè pedunculati, fasciculati, dispositi in racemum simplicem, lato-ovatum, pauciflorum, 
extra-axillarem, solitarium, folio parúm breviorem, erectiusculum ; vel rarids in umbellam bifidam, longè pedunculatam. PEDUNCULUS 
communis teres, petiolo parim longior, abiens in rachin levissime intumescentem, irregulariter flexuosam ; nunc apice bifidus ; partiales 
geminati vel ternati, vel subumbellati, 2—3-pollicares, graciles, teretes, patentissimi, suffulti bracteold lanceolatå, acutá, brevissimå. 
Catyx ovatus, vix lineas 3 longus, albescens, profundè 5-fidus; /acinie subinæquales, ovate, acutae, membranaceo-marginulatæ, parüm 
ciliatæ, fundo corolle adpresse, basi subangustatæ, ibique remotiusculæ, sinubus munitis ciliis aliquot subulatis, carnosis.  CoroLLa 
campanulata, æstivatione oblongo-clavata ; tubus cylindricus, capax, semipollicaris, calyce multà longior, extùs dilutè viridescens, apice 
vix dilatatus; limbus patentissimus, tubum longitudine subæquans, divisus in lacinias 5 ovato-oblongas, obtusas, levissime insequilateras, 
apicem versus recurvas vel revolutas, æstivatione imbricatas ; fauv ampla, pervia, nuda. COLUMNA FRUCTIFICATIONIS magna, alba, 
