INDEX.

HOOKER'S

JOURNAL OF BOTANY

AND

KEW GARDEN MISCELLANY.

FLORULA HONGKONGENSIS: an Enumeration of the Plants collected in the Island of Hongkong, by Major J. G. Champion, 95th Reg.; the determinations revised and the new species described by GEORGE BENTHAM, ESQ.

(Continued from vol. v. p. 200.)

EUPHORBIACEÆ.

1. Euphorbia pilulifera, Linn.

A weed, common all over the tropics, with E. hypericifolia, Linn., which is also found in Hongkong, though not in Major Champion's collection.

2. Stillingia sebifera, Mich.

Common in Hongkong as a shrub, though less so in the arboreous form.

3. Stillingia discolor, Champ., sp. n.; foliis longe petiolatis oblongis glabris subtus candicantibus, glandulis ad apicem petioli solitariis geminisve, in pagina inferiore raris v. nullis, spica androgyna densa, bracteis latis, masculis plurifloris, calyce trifido.-Frutex? ramulis tenuibus cum foliorum pagina inferiore more Omalanthi populifolii glaucescentibus albidisve. Folia 2-3 poll. longa, 1-1 poll. lata, nunc obtusa, nunc acutiuscule acuminata, divaricato-penninervia. Petioli 6-8 lin. longi, graciles. Glandulæ 2 haud magnæ ad apicem

VOL. VI.

B

petioli in pagina superiore sæpe in unam confluentes, et nonnullæ interdum in pagina inferiore laminæ sparsæ; hæ tamen sæpe omnino desunt. Spica fere sessilis, bipollicaris, ei S. sebiferæ subsimilis sed densior, et in omnibus speciminibus a me visis androgyna est. Bracteæ parvæ, latæ, truncatæ v. medio brevissime acuminatæ et margine plus minus fimbriatæ, glandulis dorsalibus crassis maximam partem bractea obtegentibus. Flores omnes pedicellati, pedicello 1–11⁄2 lin. longo, bracteis nonnullis parvis acutis basi fulto; fœminei solitarii, calyce trifido lobis acutis, ovario glabro, stylo ad medium trifido, lobis rotundatis obtusis. Stamina sæpius 2, rarius solitaria.

Gathered with the preceding. I have it also from Griffith's Malacca collection, so that it has a evidently a wide range, but I cannot find it anywhere published.

4. Stillingia Japonica, Sieb. et Zucc. Pl. Jap. Fam. Nat. p. 37.

Common in ravines, Col. Eyre.-This differs from Zuccarini's short character, in the leaves being less acuminated, and the glands at the top of the petiole being often solitary or wanting. In both these respects, however, the specimens of the original plant communicated to me by Dr. Blume show considerable variations.

5. Acalypha Indica, Linn.

A common weed.

6. Stipellaria trewioides, gen. nov. Alchorneæ et Rottleræ affine. In ravines, Hongkong.

Char. Gen. STIPELLARIA. Flores dioici, racemosi, apetali. Masculi fasciculati, pedicellati. Calyx globosus, 2-4-partitus, laciniis æstivatione valvatis membranaceis latis concavis. Stamina 8, v. abortu pauciora, filamentis basi in annulum connatis, antheris ovoideis ad apicem filamenti affixis, loculis longitudinaliter dehiscentibus. Feminei solitarii. Calyx 5-8-phyllus, sepalis angustis acuminatis. Ovarium sessile, globosum, 3-4-loculare, loculis uniovulatis. Stylus fere ad basin 3-4-partitus, laciniis subulatis haud plumosis intus papillosostigmatosis. Capsula subglobosa, leviter sexsulca, tricocca, epicarpio subcarnoso.-Frutices vel arbores Asiatici. Folia longiuscule petiolata, alterna, ampla, acuminata, serrato-dentata, membranacea, 3-5costata, penninervia et transversim venosa, petiolo basi bistipulato, apice stipellis 2 erectis reflexisve aucto. Racemi simplices v. subramosi, masculi ad axillas ramorum annotinorum; fœminei ad apices ramorum hornotinorum basi sæpe foliati. Flores pedicellati, masculi

ad axillam bracteæ minimæ fasciculati, bracteolis minutis v. nullis; fœminei solitarii, bractea bracteolisque ad basin pedicelli stipuliformibus.

This genus is certainly allied to the American and West African genus Alchornea, but the male inflorescence is different, being rather that of Trewia and Rottlera, as also the anthers, the female calyx, etc., besides that the ovarium appears to be constantly 3-4-merous, not dimerous as in Alchornea, and the stipellæ at the summit of the petiole are very peculiar.

The following are the species which I find in my herbarium :(1.) S. trewioides; foliis late cordatis subtus præter venas glabris, floribus masculis glabris, pedicello calyce longiore, racemo fœmineo vix puberulo, stylis per anthesin ovario 3-4-plo longioribus.-Ramuli novelli pubescentes, mox glabrati. Stipulæ parvæ, lanceolato-subulatæ, caducæ. Folia 4-6-pollicaria v. majora, basi late cordata, auriculis rotundatis, apice ut in omnibus speciebus cognitis longe acuminata, margine irregulariter calloso-serrata, novella puberula, adulta supra glabra, subtus ad venas hirtella et sæpe rubescentia, basi inter costas glandulas planas gerentia. Stipelle lanceolato-subulatæ, 1-2 lin. longæ. Racemi masculi solitarii, simplices, subtripollicares; fasciculi dissiti, 4-8-flori. Calyx inapertus globosus, lineam diametro, glaber, laciniis concavis, demum reflexis. Filamenta calyce breviora, complanata, basi breviter connata; antheræ ad apicem filamenti eglandulosi insertæ et eo longiores, ovoideæ, erectæ, loculis longitudinaliter dehiscentibus. Racemi fœminei masculis longiores et firmiores. Flores dissiti, inferiores sæpe ad axillam folii caulinis conformis, cæteri ad axillam bracteæ parvæ lanceolato-subulatæ solitarii, pedicello crasso 1-2 lin. longo. Calycis laciniæ 5-6, lanceolato-subulatæ, inæquales (1-2 lin. longæ), rigidulæ, persistentes. Ovarium globosum, tomentoso-canescens, tetramerum v. rarius trimerum. Styli lacinia semipollicares. Fructus immaturus tomento brevi canescens, nec tuberculosus.-Hongkong.

(2.) S. mollis; foliis late ovatis basi vix cordatis subtus ramulisque molliter pubescentibus, pedicellis fœmineis brevissimis, stylis ovario vix duplo longioribus.-Rottlera mollissima, Wall. Cat. n. 7825. Differs from S. trewioides in the leaves scarcely ever cordate and more regularly serrate, and almost sessile female flowers with styles not half the length; from S. villosa in the very short pubescence, the female

calyx much shorter and usually only five-leaved, the short styles, etc. The stipellæ are like those of S. trewioides, but usually smaller. The male flowers are unknown.-Nepal, Wallich.

(3.) S. villosa; foliis ovatis subcordatis subtus molliter villosis, racemis villosis, masculo simplici, pedicellis brevissimis, fœmineo ramoso, floribus distincte pedicellatis, stylis elongatis.-Folia ampla, sed proportione angustiora quam in S. trewivide, basi sinu parvo subcordata. Stipelle latiores, 1-3 lin. longæ. Racemi masculi 2-4-pollicares, calyce parvo bipartito molliter villoso; stamina sæpius 8. Racemi fœminei ad apices ramorum plurimi. Flores breviter sed distincte pedicellati. Calycis lacinia sæpius 6-8, quam in præcedentibus longiores. Styli 10-11 lin. longi, fere ad basin liberi.Malacca, Griffith: Cuming, n. 2307.

(4.) S. tiliæfolia; minute puberula v. glabrata, foliis late ovatis remote denticulatis basi cuneatis v. rotundatis, racemis simplicibus, masculorum pedicellis brevissimis, capsulis tuberculatis.-Folia 3-4 poll. longa, 2–3 poll. lata, subtus ad venas minute hirtella, cæterum glabra, glandulis baseos minimis v. nullis. Stipelle rigidulæ, 1-1 lin. longæ. Racemi masculi 2-3-pollicares. Flores parvi, pedicello calyce sæpius breviore. Calyx 4-fidus. Stamina sæpius 8. Racemi fœminei breves, pedicellis brevissimis. Flores ipsos non vidi. Capsula fere

globosa, 3-4 lin. diametro, leviter sexsulca et undique tuberculis asperata. Sillet, Wallich, n. 7829.

(5.) S. parviflora; minute puberula, foliis ovatis v. ovato-oblongis serratis basi obtusis, racemis subramosis, masculis gracilibus, floribus minimis pubescentibus, fœmineis minute puberulis, capsulis tuberculatis. Partes novella tomentoso-pubescentes. Folia adulta 3-5pollicaria, supra ad venas puberula, subtus breviter hirtella, basi inter costas glandulifera. Stipellæ vix lineam longæ. Racemi masculi 2-4-pollicares, simplices v. ramulo uno alterove instructi. Flores omnium minimi (vix semilineam diametro), 4-fidi. Antheræ 5-6 ?* Racemi fœminei ad apicem rami subramosi, ramis floribusque infimis folio subtensis. Capsula (subbaccata?) fere globosa, leviter 6-sulca, verrucis elevatis plus minus corrugata, in specimine 4–5 lin. diametro. Stylus 4 lin. longus, usque ad & trifidus.—Philippine Islands, Cuming, n. 1800.

*The flowers are however in my specimen so rotten, that I found it impossible to ascertain their structure with certainty.