191 
the Botany of the Northern United States, sixth edition, 1890, as re- 
vised by Watson and Coulter. These numbers will be found in the 
brackets following the names of the orders in the following table, 
e585 | Gs 129%]. 
Thermal constants for the blossoming and ripening of SS9 plants (or the sums of 
the mean daily temperature above zero degrees Réaumur counting from Jan- 
uary 1st), as determined by Karl Fritsch from observations in the Botanical 
Garden, in Vienna, during the years 1852-1861, inclusive. 
[See Denkschriften, Akad. Vienna, 1863, Vol. XXI.] 
» [See end of table for footnotes. ] 
Flowering. Ripening. 
Designation of plant: Order, genus, and species. | gles Con. ee | Con- 
I. Graminex [G. 129]. | Sanit | ORE 
(MeZeammays ue (SOW) Apr29) canteen see eicc s-teecinecemeseci< | July 20 I 082" |e esas ante sete 
(2ealopecurusiprabensisila a: x-seaeece feces eect acielscinnie- May 5 42) ll se sejare ol bee reretete ste 
(3) Phleum pratense L. var. nodosom.......--.....-.---.---- June 19 981 | July 28 1, 595 
Gombhalanis arundinacea leseecc-a5--see= sees se oeeeeee eee June 10 824 | July 2 1, 143 
(&)) Jee G Enel) Secon saaeeses eens a BAS aa aenoSeRoLSceEses June 8 812 | June 28 1,111 
(Glertoleustmollis Esc .c.o cas secceciccAstjciee.oe se s.erscleles aes July 2 TO Bess escess| Reese ose 
()panthoxanthum odoratum Ibs s222 250. eee s-c se = ene 2 May 15 478 | June 10 | 888 
(Sjpeanicum miliaceumi I. (Apr26)) 24-2-..2..- 22-4 - se 2-26 July 7 907 | July 22 1, 184 
(ONEStiparcapillata Wiewos seas 2) Sesto ss sec scesceee doses <i June 27 1,095 | July 24 | 1, 532 
(@O)estipaypenn ata ssssetee a: 2 soccer esse sen 4. aecenacacctn - /June 1 698 July 1 | 1, 154 
(11) Agrostis alba L. (A.stolonifera L. y, flagellare) ........-. June 29 1,091 July 16 | 1,376 
CieAcrostiskviulloariseWith © ot as-cse aeons cane esac esis eee July 4 1,157 | July 25 | 1, 500 
(18) Galamaprostis Epizejos Roth _.--2).-------2ssc-----<-<2- July 5 1,244 | July 22 | 1, 488 
(aye Avenaypratensisilito os caccl senses se aodl estes eeeeee May 25 618 | June 11 | 873 
(Gd) Avena sativa. (SOWwNVA pr 12) S22. 5226chesccceccer cece | July 5 984 | July 20 1, 200 
(Cis) [SesleriajckeruleaArduime: .- 25 222n< Aceon eode- seen es Apr. 9 221 | May 13 | 504 
(Gif) RE Oa COMPLesse MU ss isjaa.s crocecnc cess ospiss es ecenc cos sseees | June 16 922 | July 16 1, 371 
(SiwRoamemoralistiyci-see5 ccc sae pei sce actos semcteeccs | June 4 765 | June 26 1,075 
(So PRoaipratensigns esses sce ssi docs Season eeciaesceme May 27 631 | June 15 925 
(CO) eErizaym ediay lips neste Sacco cba aascemosceeenesone | June 2 760 | June 17 989 
(240) MG UGsy COG iT 0 eee es ne Ae ee | June § Se ee ape ceeal Ee eesssca- 
(22)Ebactylisielomerd ta ly). cial. seine semen ce ara see secs ooo | May 27 | 677 | June 20 999 
(25) RO yMOSURUS CLIStAUUS lisse sasee come ens ae foc oie aes seeiee | June 17 937 | July 14 | 1,371 
(2A) BH eStuCay ml auUCa AMI epics \oc'-)o -)icla seine cele ceccesece ee aess | May 31 707 | June 20 | 984 
(43) TES RICO @\ aOR) P Ram eenascoscOseane a SeeCE SE Anca s aeaaree es | May 28 655 | June 16 922 
(Ad) TRESS NER SAD beep eceon poses beeen SE Rese See pe Eeeep ose aes | June 3 754 | June 24 | 1, 055 
(27)pBromus erectus Huds) 22225 0<5 << sos)--- coe ces e essen on jeseeGOln ce 751 | July 1 |} 11635) 
(25) woOlUum perenne Wi = occ acc cateece ce eicics sac elec ces sosce dees | June 9 784 | July 9 1, 269 
(29) MEriticumi caninum sess. - <2 emacs soso e neces ejeec == | June 5 787 | July 3) 272; 
(30) Triticum pinnatum Monch var. caespitosum....-....--- | June 8 | 823 | June 29 1,115 
SP MET TCUMETE PENS Wipe (jar. cite cine = Gelses soca oes ccoeseecer sos | June 18 982 | July 9 1, 267 
(32) Triticum vulgare Vill. hibernum...................-.--- June 2 | 758 | July 3 | 1,183 
(s3)esecale cereale. Ly: hibermum: 2222... ...2-----2-+2--42-2<- | May 25 626 | June 29 1,145 
(Sa) PE yMUsaAreNaTiisilte sons: ee ck eed cce eee eee | June 2 749 | Aug. 19 | 1, 990 
(so) eeordeum! violgarest: (Appril2)). joo 2 os secs soe oases eis June 15 648 | July 16 1,150 
(S6)eAndroporonIschaemumelii eines acc een ee secce case | Aug. 5 1, 671 Aug. 16 2, 046 
