add new study: Stephens_2024 (#793)

add new dataset of data extracted from EUCLID

*  includes data for 3 new traits, bud width, bud length, and buds per inflorescence.
*  includes data on juvenile leaf dimensions for all EUCLID taxa

To avoid a "counter" context, have switched to mapping in taxa by their EUCLID name, not their accepted_name - then subspecies that collapse to species are merged together once read in and retain their separate original names.

config/traits.yml

@@ -3562,7 +3562,28 @@ traits:
         red: Perianth colour is red.
         white: Perianth colour is white.
         yellow: Perianth colour is yellow.
-      entity_URI: https://w3id.org/APD/traits/trait_0012418
+      entity_URI: https://w3id.org/APD/traits/trait_0012418    
+    bud_length:
+      label: Bud length
+      description: The length of the bud.
+      type: numeric
+      units: cm
+      allowed_values_min: 0.01
+      allowed_values_max: 200.0
+    bud_width:
+      label: Bud width
+      description: The width of the bud.
+      type: numeric
+      units: cm
+      allowed_values_min: 0.01
+      allowed_values_max: 200.0
+    buds_per_inflorescence:
+      label: Buds per inflorescence
+      description: The number of buds per inflorescence.
+      type: numeric
+      units: '{count}/{count}'
+      allowed_values_min: 1
+      allowed_values_max: 1000
     flower_length:
       label: Flower length
       description: A floral organ morphology trait [TO:0000862] which is the length

data/Stephens_2023/metadata.yml

@@ -2,16 +2,16 @@ source:
   primary:
     key: Stephens_2023
     bibtype: Article
-    year: 2023
+    year: '2023'
     author: Ruby E. Stephens and Rachael V. Gallagher and Lily Dun and Will Cornwell
       and Hervé Sauquet
-    title: Insects pollinated flowering plants for most of angiosperm evolutionary
-      history
-    journal: bioRxiv
-    volume: .na
-    number: .na
-    pages: .na
-    doi: 10.1101/2023.01.31.526530
+    journal: New Phytologist
+    title: Insect pollination for most of angiosperm evolutionary history
+    volume: '240'
+    number: '2'
+    pages: 880-891
+    doi: 10.1111/nph.18993
+    issn: 1469-8137
 contributors:
   data_collectors:
   - last_name: Stephens
@@ -28,7 +28,7 @@ contributors:
   dataset_curators: Elizabeth Wenk
 dataset:
   data_is_long_format: yes
-  custom_R_code:   '
+  custom_R_code: '
     data %>%
       group_by(canonicalName, trait_name) %>%
         mutate(value = paste0(value, collapse = " ")) %>%