134- SERTULUM CHINENSE SEXTUM. 



sence of ripe fruit and seeds, it is impossible to say whether it belongs to 

 the subsection Gramles or to 8peciois(E ; but I believe its nearest ally to be 

 L. genibiijlora, F. Schmidt, of which I possess specimens from the Mau- 

 chmian coast (Bushnell), and from Sachalin (Conolly). It is perhaps 

 the plant doubtfully refeiTed by Bunge to L. Uuifolia, respecting which 

 he gives no further information. 



9. Macaranga Sampsoni, n.sp.; arborea, dioica, ramis ramulis petio- 

 lisque flocco fulvo demum deraso vel evanesccnte obtectis, foliis coriaceis 

 orbiculari- vel deltoideo-ovatis breviter calloso-dentatis apice subito au- 

 gusto-cnspidatis basi late rotundatis atque angustissime peltatis penni- 

 atque basi subpalmati-nerviis junioribus fulvo-floccosis maturis supra gla- 

 berrimis subtus ferrugineo-hirsutis atque granulis flavis glandulosis dense 

 obsitis costulis venisque secundariis infra promiuulis 5-6 poll, longis, 

 2>^-h poll, latis, petiolo 3-5-pollicari pubescente, paniculis ^ folio triplo 

 brevioribus a basi fere ramosis, bracteis trilinealibus ovato-hanceolatis 

 caudatis utrinque 1-3-dentatis dense ferrugineo-hirsutis atque glandulis 

 nonnuUis flavis conspersis, floribus 5-6 fasciculatis bracteis superatis, 

 perigonii profunde 3-lobi lobis ovatis acutis villoso-hirsutis, stamini- 

 bus plerumque 3 rarius 4 antheris semper 4-locularibvis, paniculis fructi- 

 geris laxis petiolo plerumque cii"c. fequilongis, bracteis iiti in ^ , cap- 

 sulse coccis binis ultra medium connatis ovoideis subcompressis inermibus 

 glandulis ceraceis flavis densissime obtectis 2-2| lin. longis, stigmatibus 

 arete adpressis recurvis coccorum verticem attingentibus, seminibus ovoi- 

 deis testa fusca rugosa. 



In silvis supra coeuobium, Ting-ii-shan, secus fl. West Kiver, 80 mill, 

 pass, a Cautone occasum versus (^ floriferam d. 15 Junii 1869, eodemque 

 loco denuo $ fructigeram d. 10. Julii 1870, legit indefessus Sampson, 

 (Exsicc. n. 15G20.) 



This falls into Joh. Mueller's section Mappa ; but it does not agree 

 apparently with any species described by him, and his subdivisions are 

 purely artificial, and arranged solely to facilitate determination ; though 

 the characters he relies on are by no means constant, as, for example, the 

 relative length of limb and petiole. Dr. Hooker has recently, in his 

 edition of the late Professor Harvey's ' Genera of South African Plants,' 

 restored the genus Mappa. It seems to me, however, impossible to re- 

 gard it as generically distinct from Macaranga, which in respect of priority 

 is eighteen years older. Mappa, moreover, is objectionable as a name, 

 from its too great resemblance in sound to the Olacaceous genus MappUt. 



10. RottboUia molUcoma, n.sp.; culrais farctis ereetis 4-5 pedalibus 

 tomentosis hinc latere canaliculatis, foliis e basi rotundato-cordata lanceo- 

 lato-linearibus acuminatis cum vaginis nodisque dense molliter sericeo- 

 hirsutis inferioribus pedalibus et ultra S lin. latis, ligula scariosa vix pro- 

 ducta, spicis axillaribus solitariis folio din involutis fragillimis tripollicari- 

 bus, spiculas sessilis gluma exteriore crassa dimidiato-ovata conspicue 

 tessellato-scrobiculata pilosa, spicula pedicellata ad rudimentum minimum 

 reducla. 



In fossis et ad margines fruticetorum ins. Danorum, Whampoae, primus 

 detexi m. Octobri 1861. (Exsicc. n. 7558.) 



Apparently a quite distinct s})€cies, which Dr. Thwaites considers very 

 close to his R. nigrescens ; which it is not unlike in aspect, though with 

 broader leaves, and difl'erences in the floral characters. 



