680 BCIiMA, ITS PEOPLE AXD PRODUCTIOXS. 



P. 667. S-VccorKTALUM SCLEEOCARPDM, Hook. f. ct Th. ilartaliiin (W;illicli). 

 P. 668. Older DILLENIACE^. 



,, DiLLEXIA GKAXDIFOLIA, Wall. 



ADDITIONAL OllCHIDS. 



MiCEOsTTLis TEILOBULATA, Kui'z. Gai'd. Chron. Sept. 23, 1882. 



LiPAEis GEOS.SA, K. fil. Gard. Chron. Jan. 27, 1883. Near to L. PACinTus. 



BuLBopHTLLTTM cuPEEUM, var. FLATDM, Gard. Cbron. March 11, 1881. 



" A variety with light yellow flowers instead of the red ones." The so-called 

 variety is, from my experience, the prevailing one. I never saw "red" flowers, 

 though I have seen dull rufous ones. — C.P. 



Dendrobium (Pedilonum) Ioxopus, K. fil. Gard. Chron. Dec. 23, 1882. 

 Dendeobium secundum, var. niveuji. Gard. Chron. June 3, 1882. 

 Dendrobiuji Dearei, K. fil. Gard. Chron. Sept. 16, 1882. Buiina? 

 Dendeobium Lubbeesianum, E. fil. Gard. Chron. April 8, 1881. 



" In growth like a small D. formosum. The flowers are much like those of 

 D. cariiiiferum. Sepals and petals yellowish-white, with a white chin. On each 

 of the lateral divisions of the 3-lobed lip tliere is a cinnabar blotch, and the same 

 colour is seen at the base of the middle lobe." 



Dendeobium DALnorsiANUM, var. Rossianum. Gard. Chron. June 17, 1882. 



"A variety described as differing from the normal plant in its shade of yellow 

 (' nankin '), somewliat shaggier lip and richer markings on the stem-sheath. 



"These slight difterences are carefully noted and made the most of by Orchid 

 growers at home with a view to a new name, and the conscipiently increased sale 

 of the plant ; but their utter want of value is soon learnt by observers of Orchids 

 in their native wilds." — C.P. 



CcELoorNE BRACHTPTEEA, Pi.fil., ncarto C. LENTiGiNOSA. Gard. Chron. July 2, 1881. 

 Aeeides EjiERcrr, R. fil. Gard. Chron. Nov. 4, 1882. 



Exceedingly close to A. vivens. 



THRixPEEirrii Pereleyi, R. fil. Gard. Chron. April 29, 1881. Andamans? 



A species with terete leaves. 



Vanda Boxallii, var. Cobbiana. Gard. Chron. Dec. 17, 1881. 

 Vaniia PAKismr, var. MAECorriAXA. Gard. Chron. Juue 12, 1880. 



A distinct variety as far as colour is concerned, as the flowers are wholly purple. 



Vanda Vipani, R. fil. Gard. Chron. July 29, 1882. 



For an account of the fertilization of Orchids consult Darwin's work on that 

 subject. Le Maout also observes: "In Orchidete, owing to the consistence of their 

 pollen, extraneous agency is required to ensure fertilization, which, as in Asclcpiadea, 

 is efl'ected by insects ; and in our hot-houses, where these auxiliaries are wanting, fertili- 

 zation must be artificially secured. In some species the lip is irritable ; it oscillates 

 opposite the column (^Megacliniitm'), or turns round it {Culeana); on an insect settling 

 on the surface of the lip, the latter quickly approaches the column, and presses the 

 insect against it, which in its eflorts to disengage itself, breaks up and crushes the 

 pollen-masses, and spreads them over the stigma." 



