88 





Years old. 



No. of Seeds. 



Per cent. Germ 



odorala Behr. 



10 



200 



10 



)) • •• • •• 



57 



300 



Nil. 



pauci flora Sieber ... 



10 



1,000 



7-2 



(coriacea A. Cumi.). 









13 



12 



5,000 



5-8 



1 > "• • * * 



50 



250 



Nil. 



,, var. phlebophylla 



54 



250 



Nil. 



panicidata Sm. 



10 



10,000 



4-3* 



patens B^nth 



10 



5,000 



8-1 



pilularis Sm. 



11 



500 



25-6 



j ) ... ... 



50 



250 



Nil. 



polyanthemos Sch. 



51 



31 



Nil. 



punctata DC. 



7 



1,200 



18-2 



,, ... ... ... 



15 



600 



7 



., 



10 



3,000 



22 



j, ... ... 



15 



10,000 



7-5 



rostrata Sch. 



7 



1,000 



28-5 



,, 



10 



8,000 



8-3 



3 3 ... ... 



37 



2,000 



6-1 



... ... 



50 



220 



Nil. 



rudis Endl. 



10 



10,000 



12 



,, ... ... 



50 



280 



Nil. 



siderophloia Benth. 



10 



10 ; 000 



2-1* 



Stuartiana F.v.M. ... 



25 



100 



Nil. 



tereticornis Sm. 



10 



5,000 



8-2 



,, 



15 



850 



2-3 



urnigera Hook. f. ... 



11 



1,200 



5-5 



>) ... ... 



57 



520 



Nil. 



vimin alls Labi 11 . ... 



10 



10,000 



11 



33 



12 



500 



15 



33 ' ' * •'• 



17 



100 



Nil. 



,, vsit.fabrorum&ch. 



40 



250 



Nil. 



3 3 * - ' 



57 



150 



Nil. 



* Eucalyptus. On re-testing with thinner 3owing, and removing seedlings daily, the percentages were approximately 

 doubled. . All the seeds were soaked and germinated in 3-15 weeks at 20 deg. C-33 deg. C. Where the older seed had a 

 higher percentage than the lower, this appeared in all cases to be due to the latter containing a higher original percentage 

 of infertile seed. No Eucalj'ptus seed appeared to have completely impermeable coats, though many absorbed water 

 only slowly. (" On the Longevity of Seeds," P roc. Roy. Soc. Vic, xxi, (New series), Part 1, 1908, pp. 67-70.) 



Dr. Cuthbert Hall (Proc Linn. Soc, N.S.W., XXXIX.. 475, 1914) gives the 

 following figures : — 



Seed of E. Bailer/ana, after 23 years, failed to germinate ; and others that also gave no result were 

 E. lactea (19 years), E. quadrangulata (18), E. sideroxylon (17), E. melliodora (13), E. Mnelleri (16), E. 

 terminalis (12), E. angopkoroides (11), E. vitrea (12), E. dextropinea (13 and 18), E. Dawsoni (13), E. hmmas- 

 toma (16), E.fraxinoides (13), E. acacicpformis (14), E. Lnehmanniana (19), E.fastigata (13), E. pyriformis 

 (21), E. albens (12), and E. tessellaris (12 years). On the other hand, E. Risdoni (9 years), E.carnea (11), 

 E. Stuartiana (10), E. ovalifolia (12), E. Woollsiana (8), E. pendxda (11), E. hemilampra (9), E. punctata 

 (16), E. umbra (6), E. viridis (11), E. puludosa (13), E. trachyphloia (18), E. Rossii (7), E. pulrerulenta (10), 

 E. Baeuerleni (10), E. Macarthvri (8), E. nigra (13), E. goniocalyx (13), E. conica (11), E. camphora (12), 

 E. gracilis (8), E. Planchoniana (11), E. intertexta (10), E. Morrisii (11), E. aggregata (13), E. dealbata (12), 

 E. marginata (7), E. ajfinis (10), E. hwmastoma var. micrantha (16), and E. obliqua (18 years), all germinated 

 after such long periods of preservation. That seeds of E. obliqua and E. trachyphloia should keep 18 years, 

 and E. hwmastoma var. micrantha and E. punctata 16 years, is a remarkable testimony to the power of the 

 seeds of this genus of withstanding dessieation for prolonged periods. 



