28 THE OEDOGONIACEAE 
KEY TO THE SPECIES, VARIETIES, AND FORMS OF 
BULBOCHAETE. 
Lf Oogoniuimy24—2ijeanelenectles.. cara cere eee ee eee 8. B. minuta 
il. Oogonitm 27—40 pein length. icscichd os MM oe Co eee ee eee 2 
exOoeoniamr40=-o9(—O8)). ie) ener ieee ee eae ere ee ea nen 21 
1 Oogontumibo-Jow in length teacmame seis use oe i eee 52 
(iea@ovonium | 04-108 ninilenstheres case Eee eeieiee 47. B.impertalis 
[AOosonium not jonumpenectly knowin se seen saan eee een 59 
2 INTOMOCCIOUS:. 5: c0:.8 5 SRS vc eae Sheet che eae ORO Tene 3 
2 Dioecious, nannandnoushe 42 aac chee Oe oe ee 4 
omviegetative cells lonver thankonoadesn asst eee ee 1. B. nana 
‘an Vegetativercellsmotilongerthanvonoaddas)s.) a) aaa eee 2. B. monile 
A Suitultonyscells wathoucidivistone 1: een a eee een eee 5 
Ab WSelsrcilionay CONS Valid Ghigo, Gone poookooonebacvedoobooooondeowoeo ods 6 
5. Oospore wall smooth..... gulp eh dian 2. path so ead ee as ciate Sed Se 33. B. doliuformis 
5: (Oospore wallribbedts-ccrs.iccas nein cPoei tea ae cei oe Ree 34. B. pygmaea 
62 Divasioniorsuthultory cellibasala eee naeee oe ee ee ee U 
63 Divisionlofsuttultory,celll inferiorye4464 ee eee 10. B. furberae 
6. Division of suffultory cell inframedian, median, or supramedianf........ 11 
Gre DinistontoMsuiiultonyarcellisupentoneeceeererter ite ener arene 16 
6. Division of suffultory cell supreme.......... 17a. B. polyandria f. notabilis 
ide Oosporeswall'smooti:«-eiaes J). 50s Shree ees cee oe aie aes Ln eee 8 
7, Oospore wall Scrobiculate. .< 0.24.2. eed eos. oa ea hee oe RT eae 9 
S< Oogzoniumy 84-44 <3 1 OSs iancs oes ee aaa eke ose eee 7. B. elatior 
Sa Ooconiumesl—aiocce—ou eee cei icc 7a. B. elatior f. pumila 
9s Wesetative Cellswlg=l7a: ss... sacente ona alt «koa holes On ETE eee nr eee eres 10 
OMe Vieretativercells7=20a 0... ; aban atc: Soe eee eee 9. B. brebissoniu 
1OS-Antheridiarexterior...qacestheee eee ce aoe 7b. B. elatior var. scrobiculata 
lOwAntheridianimtenOne ser eee ce nee 9a. B. brebissoni var. minor 
113 {O0spore wall sniooth. oc... isda sc encients ot eee ee ee eee 12 
li's;@Oosporeswall’scrobiculate- <1 4.55 ascc Oe ee eee 13 
12. Didmeter Of odgonitim SS=38f.............:.--..-: l4a. B. angulosa f. picta 
IQ Diametermohoozonium oi—42 use oe eee nn ee ee 14. B. angulosa 
13. Vegetative cells 10-15u in diameter...........................10. B. furberae 
13. Vegetative cells 15-20u in diameter................ he ete Mae oe ores ee 14 
14-Oospore wallnearly snivoth) to serobiculates soo... 4 eee 15 
14. Oospore wall scrobiculate to nearly crenulate............ 11. B. crenulata 
15. Vegetative cells 2-3 diameters long..............c.c.s-+++0- 12. B. intermedia 
15. Vegetative cells 3-5 diameters long.......... 12a. B. intermedia var. depressa 
16. Diameter of vegetative cells 10-12u......... 16b. B. nordstedti var. minor 
16: Diameteriol vevetativie cells) 14-220 a. see eine eee ee 17 
lv. Vegetative cells 14=2 diameters long.................+--s2+005 15. B. borealis 
iv, Vegetativeicells)2=5 diameters) longeasy... eee eee eee 18 
18. Gynandrosporousy is .2 3 hae e eae Ge 1 PS ee 19 
18: Idioandrosporotises 3 45 ise eee ec eee ee eee 20 
19. Diameter of oogonium 28-32u.................. l6a. B. nordstedti {. suberecta 
19S Diameteriohooconiumrsh—4 asset ciate set eee 16. B. nordstedti 
20> Vegetative cellsy15-20><45—-100us . a5. 1. . oe aes 17. B. polyandria 
20. Vegetative cells 17-22X54-88y.............. 17a. B. polyandria f. notabilis 
21. Vegetative cells less than 12u in diameter............... 48. B. spirogranulata 
Zi Vegetative cells more than\ 12, in diameters... 40a eee een 22 
22 MONOCCIOUS!. 05. cccc ace Sak hiescecms RAS On BE ere 23 
22: Dioeciouss nannandrousy.2.04 6.2 eae ee ee eee 29 
22. Reproductive structures imperfectly known.............. 49. B. brevifulta 
235) Poreof oogonitim» less than ow wider. meet cee ee 24 
23.) Pore of oogoniumi more than du wide... s25+ 456) o ae 3. B. megastoma 
24. Vegetative cells l=idiametersilonee-- eee ee eee eee 25 
24. Vegetative cells 1/-2 diameters long /).9.507. 5.5. 6ek eee ee 26 
204 Oogonitim~ 24-28 u inidiamebenaaaseaetiase een eee eee 4. B. basispora 
25. Oogonium 28-34u in diameter......................2a. B. monile var. robusta 
{+ Some variations of B. nordstedtii and B. polyandria may be sought here. 
