596 



wherry: reactions of soils 



TABLE 2 

 Soil Reactions of Native Orchids 



SPECIES 



Cypripedium candidum 



parviflorum 



var. pubescens (hirsutum) 

 hirsutum(spectabile, reginae). . . 



Cypripedium (Fissipes) acaule 



Orchis (Galearis, Galeorchis) spectabilis 



Habenaria (Blephariglottis) blephariglottis. . . 



ciliaris 



cristata 



fimbriata (grandiflora) . . . 



lacera 



peramoena 



psycodes 



Habenaria (Coeloglossum) bracteat^ 



Habenaria (Gymnadeniopsis) clavellata (tri- 



d^tata) 



nivea 



Habenaria (Lysias) orbiculata 



Habenaria (Perularia) flava (virescens) 



Calopogon pulchellus (Limodorum tuberosum) 



Arethusa bulbosa 



Pogonia ophioglossoides 



Pogonia (Triphora) trianthophora (pendula) . . . 



Pogonia (Isotria) verticillata 



Spiranthes (Gyrostachys, Ibidium) beckii 



(simplex) 



cernua 



gracilis 



lucida (latifolia) 



odorata 



REACTION AND RANGE OF 

 INTENSITY 



praecox 



vernalis 



Epipactis (Goodyera, Peramium) pubescens... 



repens 



Serapias (Epipactis) helleborine (viridiflora). .. 

 Microstylis (Acroanthes, Malaxis) unif olia — 



Liparis (Leptorchis) liliifolia 



loeselii 



Aplectrum hyemale (shortii, spicatum) 



Tipularia discolor (unif olia) 



Corallorrhiza maculata (multiflora) 



odontorhiza 



wisteriana (maculata) 



alkaline 



alkaline 



alkaliiie 



alkaline 



acid 



alkaline 



acid 



acid 



acid 



acid 



acid 



acid 



acid 



acid 



acid 



acid 



acid 



acid 



acid 



acid 



acid 



neutral 



acid 



10 to 



10 to 



10 to 



10 to 



100 to 



10 to 



100 to 



100 to 



100 to 



10 to 



10 to 



10 to 



10 to 



10 to 



neutral 



acid 100 



acid 100 



neutral 



300 



acid 10 



3000 



1000 



1000 



100 



100 



100 



100 



100 



100 to 300 

 10 to 100 

 30 to 100 



100 to 300 

 30 to 300 



100 to 300 

 30 to 300 



to acid 30 

 10 to 100 



8.0-7.0 

 8.0-5.0 

 8.0-5.0 

 8.0-7.0 

 5.0-4.5 

 8.0-6.0 

 5.0-3.5 

 5.0-4.0 

 5.0-4.0 

 6.0-5.0 

 6.0-5.0 

 6.0-5.0 

 6.0-5.0 

 6.0-5.0 



5.0-4.5 

 6.0-5.0 

 6.5-5.0 

 5.0-4.5 

 5.5-4.5 

 5.0-4.5 

 5.5-4.5 

 7.0-5.5 

 6.0-5.0 



