Specify /traits/ collections

[sammyjava]

Arachis/GENUS/traits
├── _h5ai.header.html
├── mixed.trt.QP06
│   ├── arasp.mixed.trt.QP06.germplasm_trait_Holbrook.xls
│   ├── CHANGES.mixed.trt.QP06.txt
│   ├── CHECKSUM.mixed.trt.QP06.md5
│   ├── MANIFEST.mixed.trt.QP06.correspondence.yml
│   ├── MANIFEST.mixed.trt.QP06.descriptions.yml
│   └── README.mixed.trt.QP06.yml
└── mixed.trt.WFVT
    ├── arasp.mixed.trt.WFVT.germplasm_trait_Simpson.xls
    ├── CHANGES.mixed.trt.WFVT.txt
    ├── CHECKSUM.mixed.trt.WFVT.md5
    ├── MANIFEST.mixed.trt.WFVT.correspondence.yml
    ├── MANIFEST.mixed.trt.WFVT.descriptions.yml
    └── README.mixed.trt.WFVT.yml
Arachis/hypogaea/traits
├── _h5ai.header.html
└── minicore.trt.JWYM
    ├── arahy.mincore.trt.JWYM.descriptors.xlsx
    ├── arahy.mincore.trt.JWYM.observations.xlsx
    ├── CHANGES.minicore.trt.JWYM.txt
    ├── CHECKSUM.minicore.trt.JWYM.md5
    ├── MANIFEST.minicore.trt.JWYM.correspondence.yml
    ├── MANIFEST.minicore.trt.JWYM.descriptions.yml
    └── README.minicore.trt.JWYM.yml