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Page 12 · DO #4800 · 231_Rogers_Bx6FF21_r
- Collection
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David James Rogers (1918–2007) papers
- Item/Folder
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Frank Hawksworth (Arceuthobium), 1968
- Digital Object
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DO #4800,
page 12
- Collection-level dates
- 1948–1977
Page transcription
27. Shoot Color
1. Pistillate and staminate shoots of same color
2. Pistillate and staminate shoots of different color
28. Color of Pistillate Shoots
1. Green
2. Yellow
3. Orange
4. Red
5. Purple
6. Brown
7. Black
29. Principal Hosts
1. Abies (concolor, grandis)
2. Abies (magnifica)
3. Abies (other species)
4. Pseudotsuga
5. Picea (mariana, glauca)
6. Picea (engelmannii, pungens)
7. Larix
8. Tsuga
9. Pinus (Subsect. Cembroides)
10. Pinus (Subsect. Leiophyllae)
11. Pinus (Subsect. Australes)
12. Pinus (Subsect. Ponderosae)
13. Pinus (Subsects. Sabinianae and Occarpace)
14. Pinus (Subsect. Contortae)
15. Pinus (flexilis, aristata)
16. Pinus (Strobiformis)
17. Pinus (lambertiana)
34. Flowering Group (Wiens, 1968)
1. Group I (spring flowering, spring meiosis)
2. Group la (winter flowering, fall meiosis)
3. Group II (summer flowering, summer meiosis)
4. Group III (spring flowering, fall meiosis)
We employ a new concept in this study, the idea that a classification itself is an information-carrying system, and that in this sense, the sub-generic and supra-specific categories in the classification may be considered as the states of a character. Thus, the classification is a new character (No. 35) and its states are (see Fig. 1): Group I (I taxon - abietis-religiosae), Group II (I taxon - verticilliflorum), Group III (3 taxa -