132 president's addiiess. 



The opaque pollen of Lotiicera pericli/menum is unique, for 

 its grains are coloured variously white, yellow, brown, and red, 

 and sometimes even two colours are seen on one grain. The 

 pollinia of Oncidiiim variecorum are beautifully coloured objects. 

 Good types of the various colours are : — Yellow, Tussilago 

 farfara, Primula auricula, Stellaria nemorum, Syringa vulgaris, 

 and Poly gala vulgaris; Colourless, Fuschia trijjhylla and fulg ens, 

 LatTiyrus alfhara and Heliotrope Peruvianum ; Orange, Galan- 

 thus nivalis, Crocus aureus, Cueurhita ovifera, Passifiora coerulea, 

 Salvia pratensis and Abutilon striatum ; White, Malva sylvestris, 

 Dianthus caryophyllum, Pilocereus senilis, Oxalis acetosella, and 

 Eucharis grandiflora; Brown, Lathy rus latifolius, Pisum sativum, 

 Aesculus Mppocastanum, Mignionette, and Poly gala purpurea; 

 Blue, Scilla Siherica, Agraphis ?iutans, and Symphytum officinale; 

 Pink, Knautia arvensis, Penstemon, Epacris and Triticum vulgare ; 

 Purple, Onopordum acanthium, Centaurea cyamis, and Gladiolus 

 cardinalis; Eed, Saxifraga umhrosa, Dalilia superjlua, Geraniums, 

 Pelargoniums, and Lilies; Green, Ejnlolhim angustifolium, Oeno- 

 thera hiennis, Draha verna, and Papaver argemone. 



Markings oe Pollen Grains. To beauty of form and colour 

 is added beauty of sculpture and tracery — tracery often so intri- 

 cate and sculpture with such gradations of relief that words fail, 

 and even the pencil can do no more than give a general idea. 

 This ornamentation seems quite distinct from the hairs and teeth, 

 prickles and suckers, poUentube-pores and such like, already 

 referred to ; and from its liberal bestowal and richness of design 

 seems like a luxury added over and above the claims of utility, 

 to satisfy something beyond the wants of the plant, perhaps even 

 to answer no subjective purpose at all, but an objective; to 

 awaken, it may be, in us thoughts that may lead us from crea- 

 ture to Creator, and to recognise in this, so to speak, out of the 

 way corner of nature the broad general truths : — that nothing 

 lives wholly for self, and that after all and beyond all selfish or 

 class purposes lies the great final purpose of all being, the ' ' Glory 

 of God." 



The richest diaperings of monkish manuscript or of Moorish 

 art; the finest of geometrical tracery; the most skilful use of 



